Multiple choice Questions:

Question 1: Probability Question.

What is the probability that a card is chosen from a standard deck will be either a KING or a HEART?

A 0.3077 B 0.520 C. 0.200 D. 0.665

Question 2: A _______________ variable may assume an infinite number of values within a given range

A. continuous B. discrete C. parameter D. Statistics

Question 3: The weight of commercial trucks passing the weight station is a ____________________ variable.

A. continuous B. statistics C. parameter D.discrete

Question 4: 1.The chart below shows the number of cappuccinos sold at Starbucks in KLIA and Subang airports between 4 pm and 6 pm for a sample of 5 days last month.

KLIASubang

2020

4045

5050

6055

8080

Find the variance at Subang airport.

A. 390 B.380 C. 360 D.370

Question 5: KTM pays its hourly employees $16.50, $19.00 or $25.00 per hour. There are 26 hourly employees, 14 of whom are paid at the $16.50 rate, 10 at the $19 rate and 2 at the $25 rate. What is the mean hourly rate paid the 26 employees?

A. $18.12 B.$16.5 C.$17 D. $19.10

Question 6: If the variance of cappuccinos sold at Starbuck KLIA is 400, find the standard deviation

A. 21 B.19 C.22 D.20