Question

1.A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number greater than 4.

1/6
1/3
5/6
2/3


2.The probability of winning a game is 25% how many times should you expect to win if you play 40 times.

4 times
10 times
16 times
2 times

3. A survey showed that 62% of car owners prefer two car door 26% prefer four door cars, and 12% have no preference you ask 400 people how many do you think prefer the two car door.

126 people
152 people
196 people
248 people

Answer 1

1) it's 5/6
2) 10
3) 248

Answer 2

(1) Option B. 1/3

(2) Option B. 10 times

(3) Option D. 248 people

Explanation:

(1) A standard number cube with the numbers 1 through 6 is rolled. There are 2 numbers on cube that is greater than 4 that is (5 & 6)

The probability of rolling a number greater than 4 =
`(2)/(6)=(1)/(3)`

Therefore, answer is 1/3.

(2) The probability of winning a game is 25%. you play 40 times.

Therefore, 25% of 40

= 0.25 × 40 = 10 times

Answer would be 10 times.

(3) A survey showed that 62% of car owners prefer two doors car, 26% prefer four door cars and 12% have no preference.

If 400 people are surveyed, so people who prefer the two car door =

62% of 400

= 0.62 × 400 = 248 people.

Answer would be 248 people.

(1) option B 1/3

(2) Option B 10 times

(3) option D 248 people