MDM4U Exam Review

Question 1

2 cards are pulled out of a deck without replacement. What is the probability of 2 aces?

Accepted Answer

1/221

Question 2

What number should go in the green hexagon?

Accepted Answer

70

Question 3

A loaded coin has 60% chance of heads. It's flipped 10 times. What's the prob'ty of 6 heads?

Accepted Answer

25%

Question 4

True or False?

Accepted Answer

False

Question 5

A surveyor asks people on Elm St their opinion of GMO foods. This survey is susceptible to...

Accepted Answer

non-response bias

Question 6

If mean is higher than median and mode, what's the most likely shape of the distribution?

Accepted Answer

Positive skew

Question 7

What is (x+1)!/x! ?

Accepted Answer

x+1

Question 8

In how many ways can a teacher choose 6 of 17 students?

Accepted Answer

12 376

Question 9

Describe the causal relationship between an athlete's ability at football & ability at hockey.

Accepted Answer

Common cause

Question 10

What is n(S) equal to if 67 students take Data?

Accepted Answer

146

Question 11

In normal distribution, what percentage of the data in within 1 standard deviation of the mean?

Accepted Answer

68%

Question 12

How many ways can you order the letters ERRORS

Accepted Answer

120

Question 13

What is the expected value of the sum of two dice?

Accepted Answer

7

Questions 13