SI – PROBABILITY (10 QUESTIONS)

The dart board has only 3 possible scores. Dorothy threw 5 darts on the board, getting at least one score of each of 1, 2, and 3, and never getting the same scores in consecutive throws.

What is the greatest possible score that Dorothy could have gotten?

The class has 75 eggplant seeds to germinate in a bottle with partially soaked cotton balls.
Only 25 of these seeds sprouted after two days.

What percent of their seeds sprouted in two days?

A. 55.33%

B. 33.33%

C. 95.33%

D. 15.33%

 In 2010, the cost of hiring a plumber was $25 per hour.

In 2020, the cost of hiring the same plumber is $48 per hour.

The hourly cost of hiring the plumber has increased by what percent between 2010 and 2020?

A. 48%

B. 52%

C. 92%

D. 152%

E. 192%

You flip a nickel three times.
Find the probability that all flips will land on tails.

A candy store sells different-flavoured candies in boxes.

The probability that a box will contain at least one strawberry-flavoured candy is 0.55.

What is the probability that a box will not contain any strawberry-flavoured candies?

A. 0.10

B. 0.45

C. 0.55

D. 0.85

E. 1

Every student at Williamson’s College must take one of the three foreign language electives – Spanish, Italian, or French.

Lisa, who is starting her freshman year at Williamson’s College, is equally likely to take Spanish or Italian and twice as likely to take French as her foreign language elective.

What is the probability that she will take French as her foreign language elective?

A. 1/4

B. 1/3

C. 1/2

D. 2/3

E. 3/4

The probability for examinees for USC to pass the subject mathematics is 3/7 and for the subject Communications is 5/7.

If none of the examinees fails both subjects and there are 4 examinees who passed both subjects, find the number of examinees from USC who took the examinations.

A. 20 examinees

B. 25 examinees

C. 28 examinees

D. 30 examinees

E. 33 examinees

N represents the tens digit of the three-digit number 5N3.

If the value of N is to be randomly selected from the ten different digits from 0 to 9, inclusive, what is the probability that the resulting three-digit number will be divisible by 3?

A. 0.2

B. 0.3

C. 0.6

D. 0.8

E. 1.0