Quiz about Algebra 1 Statistics Quiz

Question 1

Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

Accepted Answer

7.44

Answer

7

Answer

8

Answer

7 and 8

Question 2

How many 7th graders had an IQ score in the 81-90 range?

Accepted Answer

13

Answer

6.5

Answer

3

Answer

42

Question 3

Find the Inter-Quartile Range (IQR). You may use your graphing calculator.

Accepted Answer

5416

Answer

7609

Answer

8924.5

Answer

2708

Question 4

The mean of this data set is 17.8. What would happen to the mean if 40 was added to the data set?

Accepted Answer

The mean would go up

Answer

The mean would not change

Answer

The mean would go down

Question 5

Which class has the higher median?

Accepted Answer

2nd period

Answer

1st period

Answer

They have the same median

Question 6

At the beginning of a road trip there are 14,000 miles on Denny's car.  During the trip, Denny drives his car at an average speed of 55 miles per hour.  Which graph best shows the total number of miles (y) on the car as a function of the number of hours (x) Denny drives at 55 miles per hour?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 7

The graph below shows the relationship between the number of minutes (x) that have passed since an airplane began its decent and height above the ground (y), in feet, of the airplane.
Based on the graph, how long after it starts its decent will the airplane reach a height of 3,000 feet?

Accepted Answer

28 minutes

Answer

14 minutes

Answer

16 minutes

Answer

32 minutes

Question 8

The number of cookies sold at a bakery each day last week is listed below.
264, 203, 318, 502, 341, 173, 299
The circle graph represents the types of cookies sold during the entire week. Based on the data and the circle graph, how many more chocolate chip cookies than oatmeal cookies will most likely be sold during one day next week?

Accepted Answer

75

Answer

25

Answer

125

Answer

275

Question 9

A clothing store employee opens a box containing 20 brown, 15 grey, 15 blue, and 10 white shirts.  The employee randomly selects 3 shirts from the box to place on a store shelf.  Which expression could be used to determine the probability that the employee selects 3 brown shirts?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 10

What type of relationship does this graph have?

Accepted Answer

Positive

Answer

Negative

Answer

No Relationship

Answer

Constant

Question 11

Based on the scatterplot, which of the following conclusions about the relationship between her height and weight is true?

Accepted Answer

There is a positive relationship between height and weight

Answer

There is a negative relationship between height and weight

Answer

There is a constant relationship between height and weight

Answer

There is no relationship between height and weight

Question 12

A recent survey of 800 seventh graders from across the state shows 4 out of 10 like to play paper football. How many students said they like to play paper football?

Accepted Answer

320 students

Answer

40 students

Answer

200 students

Answer

8,000 students

Question 13

If 44 values were used for the data, about how many data values are greater than the 1st quartile?

Accepted Answer

33

Answer

11

Answer

22

Answer

128

Question 14

True of false, 75% of the data values are greater than 18?

Accepted Answer

False, 75% of the values are greater than 16

Answer

True

Answer

False, 50 % of the values are greater than 18

Answer

False, 25% of the values are greater than 18

Question 15

Sam is fishing in a new catch and release pond that was just stocked with 32 bluegill, 49 catfish, 27 bass, and 12 carp. He catches a fish, releases it, then catches another. What is the probability that he caught a bluegill, then a carp?

Accepted Answer

2/75

Answer

5/24

Answer

11/30

Answer

7/60

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