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Statistics Midterm Review
Statistics Midterm Review
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Midterm review for Statistics
Flashcards
38 cards
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Practice quiz
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Questions
38
Answers
1
49.5% of N.C. people are against the legalization of marijuana. What percent is for it?
49.5
49
50.5
50
2
What is the probability of drawing two Kings WITHOUT replacing the first?
(4/52)(4/51)
2/52
(4/52)(3/51)
(1/52)(1/51)
3
What is the probability of choosing a diamond and an 2?
17/52
4/52
13/52
16/52
4
Which of the following curse words Judah has NOT said...
D---
Sh--
F---
H---
5
If K'Donnie's chance of calling Gunnar at school is 23%, what is the chance he will call Gunnar the next 3 days
(.77)3
(.23)3
.77+.77+.77
.23+.23+.23
6
The class with the highest temperature is...
80-90
80-85
70-80
75-80
7
A pop. has a mean of 26 and st. dev. of 4. What number has a Z-score of -1.4
-6.8
-5.6
20.4
-31.6
8
Inferential Statistics uses probability
True
False
9
Currently, Mrs. Aceta has this many YouTube subscribers...
107
87
97
77
10
Describe the skew of this graph
symmetric
right skewed
left skewed
bimodal
11
If Q1 = 132, Q2 = 254 and Q3 = 324, Find IQR
122
96
192
70
12
What is the mode of 11, 12, 11, 14, 10, 14
no mode
14
11, 14
11
13
The boundaries for 23.4
22.0-24.0
23.49-23.50
23.35-23.40
23.35-24.45
14
A study conducted on hours spent doing HW and test scores...
Test is dependent, HW is independent
Test is independent, HW is dependent
15
The mass of a chemical is QUALITATIVE data
True
False
16
Take 1 course from each of the following: 5 math, 4 science, and 3 English. How many ways?
12
40
23
60
17
Is this a Probability Distribution?
Yes the probabilities add to 1
No the probabilities do not add to 1
18
Sam Washam...
Can cheerlead better than most
Mia's grade would drop 10 points without him
Can twerk better than most
Amazing football player
19
On Friday I will....
Pass the Midterm
What? We're having a midterm??
Slay my Midterm
Skip the Midterm
20
A _____________consists of all subjects being studied
population
variable
sample
group
21
Questioning every 5th person as they leave a class is called...
stratified sampling
cluster sampling
systematic sampling
sample of convenience
22
If a student scored an 80 on a test with st. dev. of 4.2 and mean of 86.4. What's the Z-score?
-1.52
2.36
-1.42
6.4
23
What is the probability of picking an ace from a deck of cards?
1/2
2/52
1/4
4/52
24
Which of the following data are continuous?
Number of representatives in the House
the average height of a basketball player
the rankings of winners in a race
The number of species of trees
25
When asked Judah "Who would you want to babysit you?" he chose...
Morgan B
Mia R
Gavin F
Davis L
26
This triggers Mrs. Aceta...
Joe Biden
People who CHEAT on Stats HW
People who don't do Stats HW
People who CHEAT AND DON'T DO Stats HW named Joe Biden
27
Things we talk about in Stats that are not Stats...
Shrooms
Bad effing Brad
Legal use of Marijuana
Tattoos
28
Which is correct to find the MEAN of this probability distribution?
0(.18)+1(.34)+2(.35)+3(.11)+4(.02)
Take the square root of above
02(.18)+12(.34)+22(.35)+32(.11)+42(.02)
Take the square root of above
29
The probability that a person take Statisitcs is 46%. What is the STANDARD DEVIATION if 10 people are asked?
4.6
2.14
2.48
1.58
30
Estimate the unemployment rate in May '09
9.6%
9.5%
9.4%
9%
31
The _____ graph is most appropriate to show the avg of SAT scores at MCA over the last 10 years
pareto
pie chart
time-series
bar
32
How many ways can you choose 12 actors for a play from a group of 20
6,000,000,000
479,001,600
20!
125,970
33
Graph
D
B
C
A
34
What is the probability of choosing a black card or a heart card in a standard deck of cards?
1/52
13/52
39/52
26/52
35
Which student started this year off first in PreCalc??
Tiffani
Addy
Layton
Davis
36
Who would you want to be your partner on a STATS Midterm test?
Skye
Eli
Gunnar
Colby
37
The probability that a person take Statisitcs is 46%. What is the MEAN if 10 people are asked?
10
.54
.46
4.6
38
"My favorite teacher is 1st Aceta, 2nd Laurents, and 3rd Ashlock" is an example of:
interval
nominal
ordinal
ratio
