How do you find...
How do you find the mode in a data set?
It is the most repeated number.
What is the other word for mean?
average
True or false: There can be more than one mode.
True
Turn this mixed number into an improper fraction:
2 3/4
11/4
How do you calculate the average (or mean) of a data set?
You add all the numbers, then divide by how many numbers there are.
Mr. Nielsen kept a record of how many goals Melina scored in football practice every day.
Day- Number of goals
Monday- 4
Tuesday- 4
Wednesday-10
Thursday-9
Friday-4
Saturday-5
What is the mean of the numbers?
6
Ms. Iony kept track of the number of hours her 6th and 8th graders students spent doing homework every week. Her records showed:
1 hour
1 hour
3 hours
4 hours
3 hours
What was the mode of the numbers of hours spent doing homework?
1 and 3
What is 245,366 rounded to the nearest thousand?
245,000
How do you find the range in a data set?
You subtract the biggest number and the smallest number of the data set.
Look at this set of 7 numbers:
2,8,4,8,1,4,8
How would the mean change if the number 9 replaced the number 2 in the set?
Increase- decrease- no change?
Increase
Look at this set of 8 numbers:
64,80,80,80,74,20,64,15
How would the mode change if the number 70 were added to the set?
Increase- decrease- no change?
No change
Are these ratios equivalent?
8:2 and 16:6
Noooope
Sing Hey Diddle Diddle correctly to get the 400 points.
Hey Diddle Diddle, the median is the middle, you add and divide for the mean. The mode is the one that you see the most often and the range is the difference between.
Luca recalled how many croissants he made in the past 7 days to give out to his friends.
Day- Number of croissants
Friday-8
Saturday-7
Sunday-5
Monday-3
Tuesday- 2
Wednesday- 4
Thursday- 4
What is the median of the numbers?
4
Nahel has the following data:
m, 6, 19, 13
If the range is 13, which number could m be? 2 or 13?
13
Solve the following operation:
2 5/8 - 1 2/4 =
1 1/8
How do you find the median in a data set?
You order the numbers from least to greatest, then find the middle number.
Look at this set of 10 numbers:
8, 8, 1,1,8,3,8,7,3,5
How would the median change if the number 5 were added to the set?
Increase- decrease- no change?
Decrease
Jake has the following data:
18,20,11,11,a
If the range is 9, which number could a be? 20 or 9?
20
In an M&M's packet, there are 8 reds, 7 blues and 6 greens. One M&M's is picked up randomly. What is the probability that it is neither red nor green?
A. 1/3
B. 3/4
C. 7/19
D. 8/21
E. 9/21
1/3