Calculate the deviation in marks obtained by them.

Find the standard deviation of the following data (rounded off to two decimal places). 5,3,4,7

If the standard deviation of a, b and c is t, then what will be the standard deviation of a + 6, b+6 and c+ 6 ?

empirical rule applies only to a specific type of distribution called a bell - shaped distribution .

What is the variance of first five positive integers?

A committee has 6 members having weights (In kg) as 45, 50, 65, 72, 63, 35. Find the stander deviation

Chebyshev's theorem gives a lower bound for the area under a curve between two points that are on opposite sides of the mean and at the same distance from the mean.

Chebyshev'sTheorem : For any number 𝑘 Smaller than 1

The average blood pressure for 4000 women wwas found to be 187 mmHg with a standard deviation of 22. IJsing Chebyshev's theorem, find at least what percentage of women in this group have a blood pressure between 143 and 231 mmHg.

stander deviation is

suppose the scores on a certain college entrance exam are roughly normally distributed with a mean of 82 and a standard deviation of 5. and certain student received a 90 on the exam, Z = ....

75, 69 ,84,112 ,74 ,104 ,81 ,90 ,94 ,144 ,79 ,98 the lower inner value is

Quartiles are the summary measures that divide a ranked data set into … equal parts

correlation coefficient is a measure of linear association between ......... variables.

123, 156 ,180 ,190 ,267,290, 300, 322 ,342 ,365 ,395 Q 1 is

In quartiles The data should be ranked in increasing order before the quartiles are determined

IQR = ….

Scatterplots are created to examine these relationships graphically, a graph of two continuous variables.

What is true