Question

Question 11

1. Twelve secretaries were given a typing test, and the times (in minutes) to completed it were as follows: 8, 12, 15, 9, 6, 8, 10, 9, 8, 6, 7, 8 Find the MEAN. Round to one decimal place (example: 3.2) Blank 1

Question 12

1. The grade point averages of ten students who applied for financial aid are shown below. 3.15, 3.62, 2.54, 2.81, 3.97, 1.85, 1.93, 2.63, 2.50, 2.80 Find the MEAN. Round to two decimal places (example: 2.45). Blank 1

  

Question 13

1. The exam scores of 20 students were recorded as follows: 73, 87, 62, 98, 43, 90, 88, 97, 100, 87, 95, 100, 56, 78, 100, 88, 70, 78, 63, 78 Find the RANGE. Blank 1

Question 14

1. Twelve secretaries were given a typing test, and the times (in minutes) to completed it were as follows: 8, 12, 15, 9, 6, 8, 10, 9, 8, 6, 7, 8 Find the Five Number Summary. Lowest: Blank 1 Q1: Blank 2 Median: Blank 3 Q3: Blank 4 Highest: Blank 5

  

Question 15

1. The exam scores of 20 students were recorded as follows: 73, 87, 62, 98, 43, 90, 88, 97, 100, 87, 95, 100, 56, 78, 100, 88, 70, 78, 63, 78 Find the Five Number Summary. Lowest: Blank 1 Q1: Blank 2 Median: Blank 3 Q3: Blank 4 Highest: Blank 5

Question 16

1. The average amount of a purchase at a pipe and tobacco store is $2.12. The standard deviation is $0.45. 99.7% of the amount of purchase fall between what to prices? Put your answer in as dollars with cents (example: $5.67). Do not round or your answer will be marked incorrect. Blank 1 and Blank 2

Answer 1

Mean=sum of all observations /number of observation

Range =Maximum value - minimum value

Quartile 1=median of lower half

Quartile 3=median of upper half

Here n=even =number of observation observation

Then medain is if n is even

Median =Average of (n/2)th and (n+2)/2TH OBSERVATION

SOLUTION file is attached go through it Thanks