STATISTICS PROBLEM SOLVING

Compute for the sample size wherein the total population is 1000

• 283

• 285

• 286

• 287

What is the fixed periodic interval (k) of a total population of 60 where the sample size needed is 15 only?

Mark wants to know his average grade. His grades for a total of 9 subjects are 96, 87, 85, 91, 93, 85, 87, 88, and 87. What is his average grade?

• 87.73

• 88.00

• 88.78

• 89

What id the formula in finding the Interqueartile Range?

• Q4-Q1

• Q1+Q4

• Q3-Q1

• Q1+Q3

The mean of the number of sales of cars over a 6-month period is 91, and the standard deviation is 10. Compute for the coefficient of variation.

Use two decimal places for the answer

The skewness of the measure of a shape is symmetric when it has a value of _______.

The measure of shape under Kurtosis is said to be _______ when it has a value of less than 3.

DATA: 2, 3, 5, 6, 8, 10, 12, 15, 18, 20.

Find the corresponding value for the 75th percentile.

DATA: 572 572 573 568 569 575 565 570

Compute for the sample mean.

• 570.50

• 571

• 571.50

• 572

Which number from a data with 21 samples corresponds to the 7th decile?

• 16th

• 17th

• 18th

• 19th