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SAT Maths- Statistics
Question 1
What is the median of the following set of numbers: 3, 5, 7, 9, 11, 13, 15
- A
7
- B
9
- C
11
- D
13
Question 2
What is the range of the following data set: 21, 15, 32, 28, 19, 25
- A
17
- B
15
- C
13
- D
11
Question 3
What is the mean of the following numbers: 12, 15, 18, 22, 25
- A
18.4
- B
20.2
- C
19.6
- D
17.2
Question 4
The Set of Numbers is 2, 4, 4, 4, 5, 5, 7, 9, What is the Standard Deviation Approximately
- A
2.0
- B
1.5
- C
1.2
- D
1.0
Question 5
A bag contains 3 red, 4 green, and 5 blue marbles. What is the probability of drawing a green marble?
- A
1/4
- B
1/3
- C
2/5
- D
4/12
Question 6
What is the interquartile range (IQR) of the data set: 5, 7, 8, 12, 13, 14, 16, 20?
- A
7
- B
6
- C
5
- D
4
Question 7
Calculate the variance of the numbers: 6, 8, 10, 12, 14.
- A
8
- B
10
- C
12
- D
6
Question 8
For a data point with a value of 20 in a distribution with a mean of 15 and a standard deviation of 5, what is the z-score?
- A
1
- B
2
- C
0.5
- D
3
Question 9
If the correlation coefficient between two variables is -0.85, what can be said about their relationship?
- A
Strong positive correlation
- B
Weak positive correlation
- C
Strong negative correlation
- D
No correlation
Question 10
If P(A) = 0.5 and P(B) = 0.3, and P(A and B) = 0.15, what is P(B|A)?
- A
0.6
- B
0.5
- C
0.45
- D
0.3
There are 10 questions to complete.