Probability
Binomial Distribution
Permutation and Combination
Hypothesis Testing
Data Organization
100

What is a sample space?

A). A process that leads to well-defined results
B). A result of a single trial
C). Something that consists of outcomes
D). A set of all possible outcomes

D). A set of all possible outcomes

100

In a Binomial distribution, the outcomes of each trial must be ________ of one another.

Independent

100

Which is used when order matters?

A). nPr
B). binomcdf
C). nCr
D). invnorm

A). nPr

100

What forms the Rejection Tail? 

A). The claim
B). The test statistic
C). The critical value
D). The p-value

C). The critical value

100

What measuring scale does temperature fall under?

A). Nominal
B). Ordinal
C). Ratio
D). Interval

D). Interval

200

Which of the following numbers could be a probability?

A). -0.00002
B). 20
C). 2.021
D). 27%

D). 27%

200

A firework stand has 150 rockets. The probability of each not firing is 0.05. Find the probability that exactly 10 will fail.  

P(10) binompdf(150,0.05,10) = 0.087

200

How many combinations can you make 8 cards out of 17 cards?

A). 24,310
B). 980,179,200
C). 300
D). 214

A). 24,310

200

Find the critical value. 

Significance level = 0.05

C.V. = +/- 1.645

200

The heights of plants in a garden can be best described as...

A). Qualitative and discrete
B). Quantitative and discrete
C). Qualitative and continuous
D). Quantitative and continuous

D). Quantitative and continuous

300

A die is rolled and a coin is tossed, find the probability that the die shows an odd number and the coin shows the head side of the coin. 

A). 1/4
B). 3/5
C). 1/16
D). 1/2

A). 1/4

300
A florist has 20 bouquets ready for purchase. The probability of the flowers wilting before they are bought is 0.07. Find the probability that 5 or more flowers will wilt. 

0.011

300

How many permutations of 3 different letters are there, if chosen from the alphabet?

A). 2,600
B). 15,600
C). 3,700
D). 14,800

B). 15,600

300

If the P-value is less than or equal to alpha, ______ the null.

If the P-value is greater than alpha, ______ the null.

A). Reject, Support          B). Reject, Fail to Reject 

C). Support, Reject           D). Fail to Reject, Reject

B). Reject, Fail to Reject

300

T-Shirt sizes XS, S, M, L, XL for a club are best described as...

A). Qualitative
B). Ratio
C). Quantitative
D). Stratified 


A). Qualitative 

400

On a six-sided die, each side has a number between 1 and 6. What is the probability of rolling a 3 or a 4?

A). 1/6
B). 2/3
C). 1/3
D). 1/4

C). 1/3 

2 in 6 both divided by two results in 1/3 

400

A farmer plants 30 rows of soybeans. The probability of a plant not being fertilized is 0.04. Find the probability that less than 5 plants will be fertilized.

0.968

400

How many different ballots can be made for President, Vice President, Secretary, and Treasurer can be made if 32 people run?

A). 863,040 ballots & order doesn't matter
B). 35,960 ballots & order does matter
C). 35,960 ballots & order doesn't matter
D). 863,040 ballots & order matters

D). 863,040 ballots & order matters

400

If the test statistic falls in the critical region, you will ______ the null. If the test statistic does not fall in the critical region, you will ______ the null.

A). Support, Reject
B). Reject, Fail to Reject
C). Support, Fail to Reject
D). Fail to Reject, Reject

B). Reject, Fail to Reject 

400

The organization of raw data by classes and frequencies is called ______.

A). A Class limit
B). An Outlier 
C). A Frequency Distribution
D). A Relative Frequency 

 C). A frequency distribution

500

If a bag of balloons consists of 47 white balloons, 5 yellow balloons, and 18 black balloons. What is the probability that a balloon chosen randomly from the bag will be black?

A). 19%
B). 29%
C). 31%
D). 25%

B). 29%

18 / 62 = .29

500

A bee pollinates a dozen flowers a day. With the probability of the bee skipping a flower being 19%. What is the probability of the bee skipping more than half of the flowers in the field?

.985

500

Out of 15 pool balls, how could 6 pool balls be arranged? 

A). 5,005 ways because order matters
B). 3,603,600 ways because order matters
C). 5,005 ways because the order doesn't matter
D). 3,603,600 ways because the order doesn't matter

C). 5,005 ways because the order doesn't matter

500

The average cost of owning a farm is $3,999 per acre not including equipment. A random survey of 65 farmers revealed an average cost of $1,350 with a population standard deviation of $535. Is there sufficient evidence to conclude that the average is greater than $3,999 per acre? Use a significance level = 0.05.  

There is not enough evidence at a 5% level of significance to support the claim that the average cost of owning a farm is greater than $3,999 per acre. 


500

Find the class boundary, midpoint, and width for the class.     43-47


Class Boundary = 42.5-47.5, midpoint = 45, Class width = 5