Given an approximately normal distribution what percentage of all values are within 1 standard
deviation from the mean?
100%
98%
70%
68%
Answers
Answer:
68%
Step-by-step explanation:
By the empirical rule, for an approximately normal distribution, about 68% of all values are within one standard deviation from the mean. Refer to the normal distribution bell curve.
The percentage of all values are within 1 standard deviation from the mean is given by A = 68 %
What is Normal Distribution?An example of a continuous probability distribution is the normal distribution, in which the majority of data points cluster in the middle of the range while the remaining ones taper off symmetrically toward either extreme. The distribution's mean is another name for the centre of the range.
Normal distributions are symmetric, uni-modal, and asymptotic, and the mean, median, and mode are all equal
A data set (when graphed) must follow a bell-shaped symmetrical curve centered around the mean
Given data ,
In an approximately normal distribution, about 68% of all values are within 1 standard deviation from the mean
This is known as the empirical rule or the 68-95-99.7 rule, which states that
About 68% of the data falls within one standard deviation of the mean
About 95% of the data falls within two standard deviations of the mean
About 99.7% of the data falls within three standard deviations of the mean
Hence , the data falls within one standard deviation of the mean is 68 %
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Related Questions
Write an explicit function in terms of n that describes the following sequence:
−2, 4, −8, 16, −32, 64
Answers
Answer:
aₙ = -2(2)^(n-1)
Step-by-step explanation:
Find the area of the parallelogram.
75 cm
50 cm
Area =
Answers
Answer:
3750
Step-by-step explanation:
50*70=35005
5*50=250
no links please.....
The length of a rectangle is 3x−2 and the width is x. x. If the area is 65ft^2, what is the width?
- my other one got deleted ;)
Answers
Answer:
5 ft
Step-by-step explanation:
Area of a rectangle
length x width
(3x-2) * (x) = 65
3x^2 - 2x - 65 = 0
Δ/4 = 1 + 195 = 196
x1 = (1 + 14)/3 = 5
x2 (1-14)/3 = -13/3 (not acceptable because a length can’t be negative)
Find the equation of the line
That is perpendicular to y=-2x+1 and contains the point (8,2)
Answers
Answer:
y=.5x-2
Step-by-step explanation:
If one line is perpendicular to another that means that their slopes are negative reciprocals
which means that the slope (or m in y=mx+b) is .5
so far we have
y=.5x+b
to solve for b we plug in (8,2)
2=.5(8)+b
2=4+b
-2=b
therefore our equation is
y=.5x-2
Answer:
hope it helps
stay safe healthy and happy.
Two yards of fabric costs $15. Find the cost
for 7 yards of fabric if the cost of fabric
varies directly with the number of yards.
Answers
creí que son 21
Step-by-step explanation:
5$--3-$+3+&$73+3-+$
50 pointsssss PLEASEEEE HELPPPPP!!!!!
Mr. Alvarez and Ms. Bento each recorded grades of their students in their first period classes. The table below shows the number of students who received each letter grade during each of the first three grading periods. Both teachers have 40 students in each class.
1. Construct Matrix A to represent Mr. Alvarez’s grades and Matrix B to represent Ms. Bento’s grades.
Answers
Answer:
table below shows the number of students who received each letter grade during each of the first three grading periods. Both teachers have 40 students in each class.
1. Construct Matrix A to represent Mr. Alvarez’s grades and Matrix B to represent Ms. Bento’s grades.
Step-by-step explanation:
hshhdbdkek
Please help! For math.
Answers
Answer:
No
Step-by-step explanation:
20 x 30 x 8 = 4800 = FIRST CONTAINER
12 x 12 = 144
12x8=96/2=48
144 + 48=192 x 25 =4800 = SECOND CONTAINER
what is the correct solution? from the graph ( x , y )
Answers
Which property would you use to simplify the following expression ? 3(y + 4)
Answers
Answer:
Distributive property
Step-by-step explanation:
You would use the distributive property to simplify this. The simplified expression is 3y+12
Answer:
Distributive property
Step-by-step explanation:
3(y + 4) ← multiply each term in the parenthesis by 3
= 3y + 12
Plz answer seriously and you will get 15 points and possibly a brainliest.
Answers
Just saying, this angle is a 45 degree angle.
and the X on both is '-1'
I think?
hope this helps. im not good at math..- :)
According to a soccer coach, 75% of soccer players have had at least one sprained ankle. An athletic trainer would like to investigate this claim. To do so, the trainer selects a random sample of 125 college soccer players from across the country and finds that 99 of them have had at least one sprained ankle. The trainer would like to know if the data provide convincing evidence that the true proportion of college soccer players who have had at least one sprained ankle is greater than 75%. What are the appropriate hypotheses for this test
Answers
The appropriate hypotheses for this test are
p = 0.75 for Null Hypothesis.
p > 0.75 for Alternative Hypothesis.
Given that,
According to a soccer coach, 75% of soccer players have had at least one sprained ankle.
Null Hypothesis (H₀):
The true proportion of college soccer players who have had at least one sprained ankle is equal to 75% is,
p = 0.75
Alternative Hypothesis (Ha):
The true proportion of college soccer players who have had at least one sprained ankle is greater than 75%.
p > 0.75
Here, We are testing if the true proportion is greater than 75%, so the alternative hypothesis should reflect that.
The null hypothesis assumes the proportion is equal to 75%.
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PLS HELP ME QUICK
There are 52 cards in a deck of cards. There are no jokers in the deck. If you
shuffle the deck of cards, and choose one at random, what is the
probability that you will choose a Queen? *
Answers
Answer:
The answer is 4:52
Step-by-step explanation:
Because each type of cards has four pairs
Gina can trade empty bottles for money at the grocery store. She returned a few bottles worth $0.10 each and 6 bottles with $0.05 each. The clerk paid Gina $0.80 for all the bottles
How man bottles worth $0.10 did Gina return
A.4
B.5
C.6
D.8
Answers
Answer:
Step-by-step explanation:
Which expression gives the closest estimate of 228 – 179?
Answers
Answer:
show the picture
Step-by-step explanation:
The closest estimate of 228 - 179 is 49.
What is subtraction?Subtraction is a mathematical operation. Which is used to remove terms or objects in the expression.
Given:
The two numbers are 228 and 179.
128 and 179 are real positive integers.
And here we have to find the subtraction of 179 to 228.
In other words,
the difference between 228 and 179 is,
228 - 179
= 49
To verify the equation:
179 + 49 = 228.
That means, 49 is the required number.
And 49 is the whole number.
S0, 49 is the closest estimate.
Therefore, 49 is the required expression.
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In Alaska, the temperature at 11 a.m. was –10°F. Twelve hours later, it had decreased by 21.4°F. What was the temperature at 11 p.m.?
Answers
Answer:
The temperature would be -31.4°F. As the temperature changes below zero, the new temperature is a negative number.
Step-by-step explanation:
-10-21.4=
-31.4°F
35 degrees , 8. Nicole walked 10 blocks north from her house to a friend's house. After visiting, Nicole walked 10 blocks south back to her house. How far was Nicole from her starting point?
40 points! I just need this one, please help
Answers
Answer:
C. 3,75 cmStep-by-step explanation:
Ratio of corresponding sides:
CD/BC = BC/ABCD/6 = 6/9.6CD = 6*6/9.6CD = 3.75 cmCorrect choice is C
A writer was paid $20,000 for a 4,000-word article.
How much is that per word?
Answers
Answer:
5$
Step-by-step explanation:
20,000 / 4,000 is five or 20 / 4 = 5
Find the height of this shape, which has a volume of 15/32 cubic feet. Enter answer as a simplified fraction.
PLEASE HELP ME IM BEGGING YOU!
Answers
Answer:
2 1/2
Step-by-step explanation:
15/32 divided by 1/4 is 1 7/8, 1 7/8 divided by 3/4 is 2 1/2
Hope this helps :)
Noah wrote the expression 10m - 2c to represent the following scenario.
A bakery sells muffins for $2 each and cakes for $10 each. Write an expression that gives the amount of money, in
dollars, the bakery makes from selling m muffins and c cakes.
Explain why Noah's expression is incorrect. Provide the correct expression that represents the scenario.
Answers
Answer:
Noah's expression is wrong because he used the wrong coefficients for the variables, and he used a subtraction sign instead of an addition sign.
The correct expression is 2m + 10c
Step-by-step explanation:
Noah is incorrect because he used the wrong coefficients for both of the variables in the expression.
Since muffins are $2 each, and m is the number of muffins, the amount of money made from the muffins is 2m, not 10m.
Similarly, since cakes are $10 each, and c is the number of cakes, the amount of money made from the cakes is 10c, not 2c.
Noah is also incorrect because he used a subtraction sign instead of an addition sign. The amounts made from the muffins and cakes have to be added together.
Putting all of this together, the correct expression is 2m + 10c.
which polynomials are in standard form? choose all answers that apply
Answers
Answer:
a and c
Step-by-step explanation:
a and c's exponents are in decreasing order
Answer:
?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ? .? . ?. ?. ?. ?. ?. ?. ?. ?. ?. ?. ? .?. ?.? .?. ?. ?. ?.
Step-by-step explanation:
id.k bc im stu.pid
pls help I am terrible at math
1. 9(k+3)=27 combine like terms
Answers
Answer:
1.9k=21.3
Step-by-step explanation:
1.9k+5.7=27 then subtract 5.7 from 27 and have 1.9k=21.3
Answer:
k = 15
Step-by-step explanation:
Marcus measured the height, In Inches, y, of plants over the course of 3 weeks, The correlation coefficient between the number of days, x, and the height of the plants is 0.85. Which could be concluded based on the correlation coefficient of the data?
A. There is a strong relationship showing that as the number of days increases, the height of the plants increases.
B. There is a strong relationship showing that as the number of days Increases, the height of the plants decreases.
С. There is a weak relationship showing that as the number of days increases, the height of the plants increases,
D. There is a weak relationship showing that as the number of days increases, the height of the plants decreases,
Answers
Answer:
A) There is a strong relationship showing that as the number of days increases, the height of the plants increases.
Step-by-step explanation:
Because the correlation coefficient of 0.85 is very close to 1, there's going to be a strong, positive linear correlation between the two variables. Therefore, option A is correct.
There is a strong relationship showing that as the number of days increases, the height of the plants increases.
What is the correlation coefficient of the data?A correlation coefficient is a bivariate statistic when it summarizes the relationship between two variables, and it’s a multivariate statistic when you have more than two variables.
Marcus measured the height, In Inches, y, of plants over the course of 3 weeks, The correlation coefficient between the number of days, x, and the height of the plants is 0.85.
When the correlation coefficient is above 0.8, the correlation cofficeint is strong.
And the function is increasing.
So, there is a strong relationship showing that as the number of days increases, the height of the plants increases.
Hence, there is a strong relationship showing that as the number of days increases, the height of the plants increases.
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True or false? To begin an indirect proof, you assume the inverse of what you intend to prove is true
Answers
Answer:
True
Step-by-step explanation:
Explanation: yes
3. Which store offers the better buy for cola? Explain how you decided.
You have to find out how much 1 can costs from Bulky and Streamline
Answers
Answer:
the streamline market
Step-by-step explanation:
5- 2 over 2x-2= 3 over x^2-4
Answers
Answer:
x≈−0.62716117,0.68949071,6.93767046
Step-by-step explanation:
Answer:
just carry the 1 so you can get the answer
Step-by-step explanation:its really easy
Plot a triangle with vertices located at (4, -2) (1, -2) and (4,5) on this coordinate plane To graph the triangle, select the places on the coordinate plane to plot the vertices. Your vertices will be connected in the order that they are plotted Here is the grid.
Answers
Can somebody help me with this I don’t get it?
Answers
Answer:
the time means how long it takes to get to that distance below it
Step-by-step explanation:
brainliest goes to whoever answers the question correctly also if you want more points answer my other questions
Answers
Answer:
(16, 11) or ( 16, 10 )
Step-by-step explanation:
Charles worked for 12 hours on Wednesday. This was 3 times as long as he worked on Tuesday. How many hours did Charles work on Tuesday?
Answers
Ans:12*3=36 the answer is D
Step-by-step explanation
What is the measure of the angle labeled n?
Answers
Answer:
B. 74°
Step-by-step explanation:
n and 106° are same-side interior angles.
Same side interior angles are also supplementary angles, meaning they add to 180°.
n+106=180
n=74°
