Basic Probability

Consider a couple who have four children, and all of the children were born separately (no twins, triplets, etc.). Also, assume having a male or female is equally likely. Use a tree diagram to find total number of birth orders, for example (male, female, male, female) is one possible birth order.

How many different birth orders of male and female are there?

• 4

• 8

• 16

• 1

Tags

CCSS.7.SP.C.8B

Consider a couple who have four children, and all of the children were born separately (no twins, triplets, etc.). Also, assume having a male or female is equally likely.

What is the probability of the couple having all females?

• .5

• .25

• .125

• .0625

Consider a couple who have four children, and all of the children were born separately (no twins, triplets, etc.). Also, assume having a male or female is equally likely.

How many outcomes consist of 2 males and 2 females?

• 6

• 1

• 4

• 8

Consider a couple who have four children, and all of the children were born separately (no twins, triplets, etc.). Also, assume having a male or female is equally likely.

What is the probability of the couple having at least one male?

• 1.0

• .9375

• .0625

• .75

Find P(the sum is greater than 7) =

• 18/36

• 15/36

• 12/36

• 9/36

Find P(the sum is NOT equal to 7) =

• 18/36

• 24/36

• 6/36

• 30/36

Find P(even number sum) =

• 18/36

• 24/36

• 6/36

• 30/36

Find P(doubles, i.e. 1, 1) =

• 18/36

• 24/36

• 6/36

• 30/36

If a student was randomly chosen from this population, find P(male) = ?

• .5

• .6238

• .4917

• .4291

Tags

CCSS.8.SP.A.4

If a student was randomly chosen from this population, find P(Senior or male) = ?

• .6200

• .7789

• .4917

• .1178

Tags

CCSS.HSS.CP.B.7