Measures of Center
Find the mode:
3, 4, 8, 2, 1, 9
What is another name for Quartile 2?
What is the "median"?
What is the probability of flipping tails at the super bowl?
What is 1/2 ?
If I do not put back the marble I drew on the first draw, then draw again, are these events independent or dependent?
Dependent
What is the probability you will walk outside and see a flying zebra?
A. Impossible
B. Unlikely
C. Equally Likely
D. Likely
E. Certain
A. Impossible
Find the mean of:
10 9 8 10 15
What is 10.4?
Find the RANGE:
50 70 60 55 45 50
What is 25?
What is the probability of rolling a number less than 3 on a dice in SIMPLEST FORM?
1/3
What is the probability of flipping heads on a coin, then rolling a number less than 4 on a die?
What is 1/4 ?
What is the probability you will get an even number when you roll a dice?
A. Impossible
B. Unlikely
C. Equally Likely
D. Likely
E. Certain
C. Equally likely
Find the median of:
110 127 118 124 123 110
What is 120.5?
Find Q1 and Q3:
5 6 7 8 9
What are Q1: 6 and Q3: 8?
What is the probability of rolling an even number on a die in SIMPLEST FORM?
What is 1/2?
A jar of candy has 2 orange, 4 grape, and 6 strawberry suckers left. What is the probability I get a grape sucker, eat it, then draw an orange sucker? SIMPLIFY
2/33
Mr Wilson wants to know what sport kids at French want to see added to middle school options. What sample would be representative for him to ask?
A. a group of 40 students currently involved in sports
B. a group of 40 students NOT involved in sports
C. a group of students with 1 each from 6th, 7th, and 8th grade
D. a group of 40 students randomly selected from the school
D. a group of 40 students randomly selected from the school
Find the measures of center (mean, median, mode) of:
400 400 500 600 300 400 800 900
What are mean: 537.5, median: 450, and mode: 400?
Find the Median:
100 129 130 140 145 150
What is 135?
You have a jar of 4 green, 2 red, and 8 purple marbles. What is the probability of drawing a purple marble in simplest form?
What is 4/7?
My drawer has 2 red socks, 5 brown socks, and 3 black socks. What is the probability I draw a red sock, put it back, then draw a brown sock? SIMPLIFY
1/10
What is the probability you will grab a pen out of a bag with 10 pens and 3 pencils?
A. Impossible
B. Unlikely
C. Equally Likely
D. Likely
E. Certain
D. Likely
Find the median and mode(s) of this data set:
65, 71, 71, 76, 84, 84, 85
Median = 76
Mode = 71 & 84
Find the IQR (Interquartile range) for this data set:
12, 18, 19, 19, 20, 22, 24
IQR = 4
100 kids are asked if they like Spongebob, Patrick, or Squidward the best. 38 said Spongebob, 46 said Patrick, and 16 said Squidward. Out of a group of 350 kids, how many would you expect to like Squidward the best?
56
My drawer has 2 red socks, 5 brown socks, and 3 black socks. What is the probability I draw two black socks in a row if I do not put back after the first draw?
1/15
Ms. Wagner wants to plan a celebration for 7th grade students for the end of the year. She wants to know if they would prefer a pizza party or an ice cream party. Which sample would be most representative for her research?
A. randomly selected students from each lunch period
B. randomly selected students from each 7th grade AB
C. randomly selected students students who are eating pizza at lunch
D. randomly selected students who attended the last 7th grade celebration
B. randomly selected students from each 7th grade homeroom