Populations and Sample
Probability
Potpourri
100
What is a sample?
What is "a set of individuals or values chosen from a population"?
100
What is the likelihood of pulling a white marble out of a bag with only white marbles
Certain, 1
100
What is the range for data set B={3, 1, 7, 5, 6, 10, 8, 9, 9?
What is 9?
200
A random sample of 50 students from HSMS were sampled. This represented 10% of the population. 30 of the students from the sample did not like the cafeteria food. Predict how many students will not like the cafeteria food of the total students population.
What is 300 students?
200
A spinner has 3 equal sections labeled blue, white, and red. What is the likelihood of not landing on blue?
Likely, 2/3
200
Which shows a good representation of a set of scores: mean, median or mode?
What is Median, because it shows the middle without being changed by any outliers?
300
What is an Inference?
What is using data from a sample to draw conclusions about a population? (or a similar definition)
300
What are the total number of outcomes?
12
300
What are Measures of variability? List 2 measures of variability.
What are values that describe the variability or spread of a data set? Examples: Range, IQR, and MAD.
400
A school wants to add a coed soccer program. To determine student interest in the program, a survey will be taken. In order to get a random sample, which group should the school survey? A) every third student entering the building; B)every member of the varsity football team; C) every member in Ms. Zimmer’s drama classes; D) every student having a second-period French class.
What is choice A?
400
If you are doing a compound event problem and are using a regular number cube for one model and a coin for the other model, list all the possible outcomes
H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6
400
What are Measures of center? List 3 measures of center.
What are values at the center or middle of a data set? Examples: Mean, Median, and Mode.
500
This box plot shows the cost of speeding tickets in 2 states. Julia got a $90 speeding ticket. Which state did she most likely get this ticket in? Why?
State B. The costs are generally higher. They have a mean of 80. Most of the data is between 70 and 100 in State B.
500
What is the probability of buying a necklace that is a 20 in. and silver?
5/75 = 1/15
500
If 6 and x have the same mean (average) as 2, 4, and 24, what is the value of x?
What is 14?