Katie took a math quiz that had 25 question. She received an 88%. How many question did she get correct?
22
100
Find the mean of this set:
14,18,15,16,2,8,9,10,14,16,22,35,15,18
The mean is 15.14
200
The math test scores of 5 students are 92,88,80,68, and 52. find the SD.
14.53
200
Answer the following:
If the z-scrore has a value of 0_______ to the mean.
If the z-score has a positive value it is ______ the mean.
If the z-score has a negativie value it is _____ the mean.
If the z-scrore has a value of 0__equal_____ to the mean. If the z-score has a positive value it is _above_____ the mean.
If the z-score has a negativie value it is _below____ the mean.
200
Find the median of these even numbers:
76,80,91,75,76,100
78
200
The principal surveyed 800 students to find out their favorite subject. If 30% of the students chose math, how many students chose math?
240
200
17% of what is 156?
917.6
300
A class scores 92,92,92,52 and 52. Find the Variance.
384.16
300
The following set is run by the nationals. {2,4,7,11,6,12}.
Find the z-score for 11 runs.
Z-score for 11 runs is 1.1.
300
Find the range of these numbers:
{105,98,83,127,115,114,132,93,107,101,119}
49
300
1,100 people were surveyed to find out their favorite ice cream flavor and 91% chose vanilla. How many people chose vanilla.
1001 people chose vanilla.
300
The grades on a History midterm at Covington are normally distributed with 65 (mean) and 3.0 (SD). Ben scored 68 on the exam. Find the z score for Ben's exam grade (Round two decimal places).
The z score is 1.00
400
A class scores 92,92,92,52 and 52. Find the Mean and SD.
Mean: 76
SD:19.60
400
The following set is run by the nationals. {2,4,7,11,6,12}.
Find the raw score, mean, and SD for 11 runs.
Raw Score: 11
Mean: 7
SD:3.6
400
The math test scores are {80,75,90,95,65,65,80,85,70,100} Find the median.
80
400
on a telephone survey, 400 people or 46% of those who called said that they were watching NBC at the time of the call. How many people were surveyed at the time?
184 people were surveyed.
400
Find the Mode, median, mean, range, lower quartile, and upper quartile.
6.5, 7, 7.5, 8, 8, 8, 9, 10, 10.5