Author Question: A carton containing 75 towels is inspected. Each towel is rated first quality or irregular. After ... (Read 32 times)

joesmith1212 · **on:** Jul 24, 2018

A carton containing 75 towels is inspected. Each towel is rated first quality or irregular. After all 100 towels are inspected, the number of irregulars is reported as a random variable. Explain why x is a binomial variable

Question 2

Which of the following statements is false?
a. A bar chart and histogram can be used interchangeably.
b. The bars on a bar chart have the same width.
c. The simplest graph for quantitative data is the dotplot.
d. There are gaps between the bars in a bar chart.
e. All of these.

whitcassie · **Reply #1 on:** Jul 24, 2018

Answer to Question 1

x is a binomial variable since it satisfies the following properties:
n = 75 repeated identical independent trials (towels), there are only two outcome (first quality, irregular), p =P(success) = P(irregular), x = number of irregular towels that may take on any integer value from 0 to 75.

Answer to Question 2

A