Biology Forums - Study Force

The mathematical expression that describes the shape of the curve for the exponential distribution is known as the exponential probability density function.
 
  Indicate whether the statement is true or false

Q. 2

A survey asked randomly selected adults 18-29 years old to indicate their working status. The results are shown in the following table.
 
  Working Status Frequency
  Working full-time 103
  Working part-time 60
  Student, not working 31
  Unemployed 56
 
  The probability that a randomly selected adult 18-29 years old is working part-time is ________.
  A) 0.09
  B) 0.24
  C) 0.30
  D) 0.60

Q. 3

General Mills is considering offering a new type of yogurt. To gauge interest, they are performing taste tests at different locations around the country. Based on the results of these samples, they will decide whether or not to market the new yogurt.
 
  This is an example of using________________.A) secondary data
  B) qualitative data
  C) descriptive statistics
  D) inferential statistics

Q. 4

The following data represents the number of Sony TVs sold per day at a particular Costco over a random sample of five business days.
 
  9 2 7 7 5
 
  The mean of this sample is ________.
  A) 5.7
  B) 6.0
  C) 6.4
  D) 6.6

Q. 5

The following distribution shows the frequency of daily revenue for an Italian restaurant in Wilmington, Delaware.
 
  Revenue Frequency
  Under 2,000 18
  2,000 to under 4,000 10
  4,000 to under 6,000 26
  6,000 to under 8,000 14
  8,000 to under 10,000 8
  Over 10,000 4
 
  How many business days does this frequency distribution represent?
  A) 100
  B) 80
  C) 32
  D) 18

Ans. #1

TRUE

Ans. #2

B

Ans. #3

D

Ans. #4

B

Ans. #5

B