Solving
Calculate the mean and median for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
mean: 7.44 median: 7
A value much greater or much less than the others in a data set.
Outlier
Why do we randomly select our samples?
reduce bias
If you randomly pick a card from a deck of 52, what is the probability that you will pick a RED KING?
2/52 or 1/26
In the number set 2,4,6,6,8,10, what is the mode?
6
Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
Systematic Random
14. Variables such as hair color, eye color, religion, favorite movie, gender, etc. are _______________
Categorical
16. Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.
simple random sample
You are taking a multiple choice test, all with 4 possible answers. If you had no idea what the answer was, what is the probability of you guessing the correct answer?
1/4
Rearrange the following numbers to fine the median; 6,3,9,6,1,3,7
6
Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.
230 Teachers
Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.
simple random sample
A bag contains 12 balls; 3 red, 5 blue, and 5 yellow. What is the probability of selecting a blue ball at random?
5/12
If every letter in the alphabet is placed into a bag, that are the odds that you will select a vowel? (not Y)
5/26
If I was looking for the number that occured most, I would be looking for what? Mean, Median, or Mode?
Mode
A restaurant wants to know if their customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.
20 customers
Variables such as hair color, eye color, religion, favorite movie, gender, etc. are _______________
Categorical
A spinner has 4 equal pieces to it, labeled 1, 2, 3, or 4. What are the odds that you will spin and land on an even number?
2/4 or 1/2
If you randomly select a card from a deck of 52, what is the probability of selecting a black card?
26/52 or 1/2
To find the mean, I need to add all the numbers and then do what?
Divide by the number of numbers
If you score 76, 85, 97, and 83 on your math tests, what would your median score be?
84
what is the definition for standard deviation
a quantity calculated to indicate the extent of deviation for a group as a whole
A cooler has 8 cans of soda; 3 cokes, 3 sprites, and 2 root beers. If you reach into the cooler, what are the odds that you will pick a diet soda?
0/8
If every letter in the alphabet is placed into a bag, that are the odds that you will select a letter found in the word "HAPPY"?
4/26 or 2/13
To find the median, i need to arrange the numbers from _____ to _____ and find the ______ number.
Least, Greatest, Middle