Basic Statistics Assessment

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Find the mean of the two numbers

• They are both the median

• None of the above

What is the mode of the following data set...

4 , 8 , 5 , 17 , 5 , 4 , 9 , 5 , 6 , 82

• 4

• 6

• 9

• 5

The average temperatures across Washington, Texas, Oklahoma, New York, Missouri, Georgia, Hawaii and Michigan are 48°F, 65°F, 60°F, 45°F, 54°F, 64°F, 70°F and 45°F respectively. Find the median.

• 25° F

• 57° F

• 47° F

• 86° F

What is the probability that a female is chosen given they like a Toyota? 

• .525

• .4627

• .6774

• .3143

It is a number that represents a property of the sample

• statistic

• population

• parameter

• sample

It is the arithmetic mean of data values after certain number of proportion of the highest and lowest data values have been discarded

• Generalized mean

• Truncated Mean

• Interquartile Mean

it is a planned operation carried out under controlled conditions

• Experiment

• Probability

• Chance

• Luck

The __________ of an experiment is the set of all possible outcomes.

• choices

• options

• universality

• sample space

True or False:

To calculate the probability of an event A when all outcomes in the sample space are equally likely, count the number of outcomes for event A and divide by the total number of outcomes in the sample space.

• True

• Case to case basis

• False

It is the degree of peakedness of a distribution, usually taken relative to a normal distribution.

• Leptokurtic

• Kurtosis

• Skewness

• Deviation