Free Printable U5-L5: Entrance Ticket (STATS)

1.

Find P(Spinning a 3 and Drawing an A).

a)

2/8

b)

1/16

c)

1/4

d)

1/8

2.

You roll a 2 on a number cube and spin a 3 on a spinner. Is an example of __________ event?

a)

independent

b)

dependent

3.

What is P(A and B) if P(A) = 1/2 and P(B) = 2/7, where A and B are independent events?

a)

1/7

b)

5/8

c)

1/2

d)

1/12

4.

Lactose intolerance causes difficulty in digesting dairy products that contain lactose (milk sugar). It is particularly common among people of African and Asian ancestry. In the United States (not including other groups and people who consider themselves to belong to more than one race), 82% of the population is white, 14% is black, and 4% is Asian. Moreover, 15% of whites, 70% of blacks, and 90% of Asians are lactose intolerant. Suppose we select a U.S. person at random.

Find the probability that the person is lactose intolerant. (Round to the nearest thousandth).

(a)

5.

Lactose intolerance causes difficulty in digesting dairy products that contain lactose (milk sugar). It is particularly common among people of African and Asian ancestry. In the United States (not including other groups and people who consider themselves to belong to more than one race), 82% of the population is white, 14% is black, and 4% is Asian. Moreover, 15% of whites, 70% of blacks, and 90% of Asians are lactose intolerant. Suppose we select a U.S. person at random.

Given that the chosen person is lactose intolerant, what is the probability that he or she is Asian?

(Round to the nearest hundredth).

(a)

6.

Tell whether the events are dependent or independent.

Drawing a blue tile from a bag and then drawing a red tile without replacing the first tile.

a)

independent

b)

dependent

7.

A bag contains 4 blue marbles, 6 green marbles and 3 yellow marbles. If two marbles are drawn at random from the bag.

What’s the probability of drawing a green marble, without replacing it, and then drawing a yellow marble?

a)

3/25

b)

3/26

c)

9/25

d)

9/26

8.

How do you write 0.02 as a percent?

a)

.02%

b)

2%

c)

20%

d)

200%

9.

If you roll one die, what is the probability of getting an odd number or a 4? Are the events inclusive or mutually exclusive?

a)

events inclusive

b)

mutually exclusive

10.

When you multiply events they are independent when events are ______________?

a)

unequal

b)

equal

U5-L5: Entrance Ticket (STATS)

Total questions: 10

Worksheet time: 16mins

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