Statistics: Exam 2

List the outcome(s) of the event 'They lose at least one game.'

• {WWL, WLW, LWW}

• {WWW, WWL, WLW, LWW}

• {WWL, WLW, WLL, LWW, LWL, LLW, LLL}

• {WWW, WWL, WLW, WLL, LWW, LWL, LLW, LLL}

Tags

CCSS.HSS.CP.A.1

How many different sequences of 3 notes are possible in a melody composed by a singer-songwriter with a vocal range of 13 notes?

• 39

• 2,197

• 1,594,323

• 1,716

How many license plates can be made consisting of 3 letters followed by 2 digits?

• 11,881,376

• 100,000

• 175,760

• 1,757,600

What is the probability of getting heads when a coin is tossed?

• 0.1

• 0.5

• 0.9

• 1

Tags

CCSS.7.SP.C.5

If one card is drawn from a standard deck of 52 playing cards, what is the probability of drawing an ace?

• 1/4

• 4/13

• 1/13

• 1/52

Tags

CCSS.7.SP.C.7B

If an individual is selected at random, what is the probability that he or she has a birthday in July? Ignore leap years.

• .0019

• 0.033

• 0.085

• 0.0027

Tags

CCSS.7.SP.C.7A

The distribution of blood types for 100 Americans is listed in the table. If one donor is selected at​ random, find the probability of selecting a person with blood type:

A+ or A−

• 0.4

• 0.02

• 0.34

• 0.06

Tags

CCSS.HSS.CP.B.7

A stem and leaf plot for the number of homeruns hit by 30 high school teams is shown. Find the probability that a team chosen at random hit at least 45 homeruns based on the given stem-and-leaf plot.

• 0.818

• 0.167

• 0.5

• 0.867

Classify the events as dependent or independent. Events A and B where:

P(A) = 0.7

P(B) = 0.3

P(A and B) = 0.2

• independent

• dependent

Tags

CCSS.HSS.CP.A.4

CCSS.HSS.CP.A.2

Four students drive to school in the same car. The students claim they were late to school and missed a test because of a flat tire. On the makeup​ test, the instructor asks the students to identify the tire that went​ flat; front​ driver's side, front​ passenger's side, rear​ driver's side, or rear​ passenger's side. If the students​ didn't really have a flat tire and each randomly selects a​ tire, what is the probability that all four students select the same​ tire?

• 1/8

• 1/4

• 1/16

• 1/64