Math 30-2 Assignment #5

Nine boys and twelve girls have signed up for a trip. Only six students will be selected to go on the trip. Determine the probability that there will be equal numbers of boys and girls on the trip.

• 0.1723

• 0.2261

• 0.2735

• 0.3406

Answer explanation

Jake and Agnes are playing a board game using regular dice with sides numbered 1 through 6. If a player rolls a sum greater than 9 or a multiple of 6,the player gets a bonus of 50 points. The probability, to the nearest hundredth, of earning 50 bonus points is? (ENTER AS A PERCENT, ROUNDED TO THE NEAREST PERCENT)

Answer explanation

Ryan needs to create a four-digit password to access his voice mail. Determine, to the nearest percent, the probability that his password will be greater than 3500.

Answer explanation

Ashley has letter tiles that spell NAPKIN. She has selected three of these tiles at random. Determine the probability that the tiles she selected are two consonants and one vowel. Express your answer as a decimal.

Answer explanation

The probability that Heidi will go to the gym on Saturday is 0.63. The probability that she will go shopping on Saturday is 0.5. The probability that she will do neither is 0.3. Determine the probability that Heidi will do at least one of these activities on Saturday. Express your answer as a decimal.

Answer explanation

A parent-teacher committee consisting of 4 people is to be formed from 20 parents and 5 teachers.

Find P(all teachers)

• .000395

• .000673

• .000412

• .000984

Answer explanation

A parent-teacher committee consisting of 4 people is to be formed from 20 parents and 5 teachers.

Find P(2 parents and 2 teachers)

• .17

• .16

• .15

• .14

Answer explanation

A parent-teacher committee consisting of 4 people is to be formed from 20 parents and 5 teachers.

Find P(all parents)

• .677

• .383

• .207

• .475

Answer explanation