The diameter of ball bearings produced in a manufacturing process can be explained using a uniform ...

The diameter of ball bearings produced in a manufacturing process can be explained using a uniform distribution over the interval 3.5 to 5.5 millimeters.
 
  What is the probability that a randomly selected ball bearing has a diameter greater than 4.6 millimeters?
  A) 0.5111 B) 2 C) 0.8364 D) 0.45

Q. 2

In interpreting a boxplot of a data set we note that the median is to the left of the center of the box and the right line is longer than the left line. We can conclude that
 
  A) The data is symmetric.
  B) The data is skewed left.
  C) Skewness or symmetry cannot be determined by a box plot.
  D) The data is skewed right.

Q. 3

Eleven high school teachers were asked to give the number of students in their classes. The sample data follows. Would any of the class sizes be considered an outlier? Answer Yes or No.
   36, 31, 30, 31, 20, 19, 24, 34, 21, 28, 24
 
  A) Yes B) No
 
  A) Dropout rates had a higher average with more variability in 2010 than in 2012.
  B) Dropout rates had a higher average with less variability in 2010 than in 2012.
  C) Dropout rates had a lower average with less variability in 2010 than in 2012.
  D) Dropout rates had a lower average with more variability in 2010 than in 2012.

Q. 4

The following is a sample of 19 November utility bills (in dollars) from a neighborhood.What is the largest bill in the sample that would not be considered an outlier?
   52, 62, 66, 68, 72, 74, 76, 76, 76, 78, 78, 82, 84, 84, 86, 88, 92, 96, 110
 
  A) 86 B) 96 C) 95 D) 88

Q. 5

Eleven high school teachers were asked to give the numbers of students in their classes. The sample data follows: 36, 31, 30, 31, 20, 19, 24, 34, 21, 28, 24. Find the five-number summary.
 
  What will be an ideal response?

Q. 6

The following is a sample of 19 November utility bills (in dollars) from a neighborhood:
  52, 62, 66, 68, 72, 74, 74, 76, 76, 76, 78, 78, 82, 84, 84, 86, 88, 92, 96. Find the five-number summary.
 
  What will be an ideal response?

Q. 7

A group of 79 students were asked how far they commute to work from home each time they go to work from home. The results are given below. Would a drive of 15 miles be considered an outlier? Answer Yes or No.
 
  Miles
  traveled Frequency
 
  1 1
  2 2
  3 12
  4 18
  5 7
  6 10
  7 10
  8 11
  9 5
  10 3
 
  A) Yes B) No