How do you find the interquartile range of the UPPER and LOWER quartiles?
A restaurant leaves a fishbowl on the counter for diners to drop their business cards. Once a month, a business card is pulled out to award one lucky diner a discounted dinner. Is this a random sample?
315 out of 600 people surveyed voted for Candidate A. How many votes can Candidate A expect in a town with a population of 1500?
315/600 = x/1500
x=788The sum of all possible outcomes is always equal to 1.
There are three choices of jelly beans - grape, cherry and orange.
If the probability of getting a grape is 3/10 and the probability of getting cherry is 1/5, what is the probability of getting orange?
3/10 + 1/5 + ?/? = 1
5/10 + ?/? = 1
? = 5/10
The probability of getting an orange jelly bean is 5/10
Six out of 150 tires need to be realigned. How many out of 12,000 are going to need to be realigned?
72000 = 150x
x=480 tires
Select a card from a deck of cards, replace it in the deck, shuffle the deck, and select a second card.
What is the probability that you will pick a 6 and then a king?
4/52 x 4/52 = 1/169
Of the first 40 visitors through the turnstiles at an amusement park, 8 visitors agreed to participate in a survey being conducted by park employees. Find the experimental probability that an amusement park visitor will participate in the survey.
Find the mean of each half of the data set:
1, 2, 2, 3, 5, 5, 5, 8, 8, 9
The student council wanted to determine which lunch was the most popular among their students. They conducted surveys on two random samples of 100 students. Make at least two inferences based on the results.
Student sample #1:
Hamburgers: 12
Tacos: 14
Pizza: 74
Total: 100
Student sample #2:
Hamburgers: 12
Tacos: 11
Pizza: 77
Total: 100
More student prefer pizza than hamburgers and tacos combined
A golf course offers a free game to golfers who make a hole-in-one on the last hole. Last week, 24 out of 124 golfers achieved this. Find the experimental probability that a golfer makes a hole-in-one on the last hole.