1. Question 1 options: a) b) c) d) frequency percentage. 2. Scoops of Ice Cream

Question

1.

Question 1 options:

a)

b)

c)

d)

frequency percentage.

2.

Scoops of Ice Cream Flavors Purchased at a Stand in Coney Island During the Summer of 1943

Ice Cream Flavor

Frequency

A

Percentage

Cumulative Percentage

Rum Raisin

250

7,250

3.45

100.00

Chocolate

1,500

7,000

20.69

C

Strawberry

1,750

5,500

B

75.86

Vanilla

3,500

3,750

48.28

51.72

Walnut Ripple

250

250

3.45

3.45

Reference: Ref 2-1

After thoroughly reviewing the table of Ice Cream Flavors, the owners of the ice cream stand would most likely choose to _____ for next summer.

Question 2 options:

a)

b)

c)

d)

3.

The top row showsn here is from a larger table. This assessment of sight words is known to be accurate within 15 words.

Sight Words Known by First-Grade Girls

Frequency

Cumulative Frequency

Percentage

Cumulative Percentage

330–350

25

1,250

3.54

100.00

Reference: Ref 2-3

In the table of first-grade girls' sight words, the correct value of the midpoint of the real limits is:

Question 3 options:

a)

b)

c)

d)

340, the same as with the apparent limits of this interval.

4.

Interval- and ratio-level data are _____ and should be graphed with _____.

Question 4 options:

a)

b)

c)

d)

continuous or discrete; a histogram if continuous

5.

A frequency polygon with "normalish" shape will have:

Question 5 options:

a)

b)

c)

d)

more than one high point.

6.

Find the mode in the following set of data: 10, 2, 6, 1, 1, 2, 4, 5, 3, 4, 8, 10, 1, 9, and 7.

Question 6 options:

a)

b)

c)

d)

4.87

7.

Which is a measure of central tendency?

Question 7 options:

a)

b)

c)

d)

median

8.

A health psychologist is interested in knowing whether the people in the local community exercise on a regular basis. She collects data from 100 local residents and classifies them as regular exercisers and nonregular exercisers. Which measure of central tendency would be appropriate to report?

Question 8 options:

a)

b)

c)

d)

variance

9.

Sally tests how many trials it took for seven rats to learn that a flashing light signals the presentation of food. These are Sally's data: 75, 109, 120, 114, 100, 124, and 93. Calculate the median.

Question 9 options:

a)

b)

c)

d)

109.00

10.

One advantage of the median over the mean is that the median:

Question 10 options:

a)

b)

c)

d)

a)

grouped percentage.

b)

cumulative percentage.

c)

cumulative frequency.

d)

frequency percentage.

2.

Scoops of Ice Cream Flavors Purchased at a Stand in Coney Island During the Summer of 1943

Ice Cream Flavor

Frequency

A

Percentage

Cumulative Percentage

Rum Raisin

250

7,250

3.45

100.00

Chocolate

1,500

7,000

20.69

C

Strawberry

1,750

5,500

B

75.86

Vanilla

3,500

3,750

48.28

51.72

Walnut Ripple

250

250

3.45

3.45

Reference: Ref 2-1

After thoroughly reviewing the table of Ice Cream Flavors, the owners of the ice cream stand would most likely choose to _____ for next summer.

Question 2 options:

a)

buy extra Walnut Ripple

b)

buy less Vanilla

c)

replace either Walnut Ripple or Rum Raisin

d)

buy less Chocolate than Strawberry

3.

The top row showsn here is from a larger table. This assessment of sight words is known to be accurate within 15 words.

Sight Words Known by First-Grade Girls

Frequency

Cumulative Frequency

Percentage

Cumulative Percentage

330–350

25

1,250

3.54

100.00

Reference: Ref 2-3

In the table of first-grade girls' sight words, the correct value of the midpoint of the real limits is:

Question 3 options:

a)

325, 15 less than it would be for the apparent limits.

b)

680, twice what it would be for the midpoint of the apparent limits.

c)

170, half what it would be for the midpoint of the apparent limits.

d)

340, the same as with the apparent limits of this interval.

4.

Interval- and ratio-level data are _____ and should be graphed with _____.

Question 4 options:

a)

continuous only; a frequency polygon if discrete

b)

discrete only; a bar graph

c)

continuous or discrete; a histogram

d)

continuous or discrete; a histogram if continuous

5.

A frequency polygon with "normalish" shape will have:

Question 5 options:

a)

thick tails.

b)

platykurtic tendencies.

c)

one high point in the middle.

d)

more than one high point.

6.

Find the mode in the following set of data: 10, 2, 6, 1, 1, 2, 4, 5, 3, 4, 8, 10, 1, 9, and 7.

Question 6 options:

a)

2.00

b)

4.00

c)

1.00

d)

4.87

7.

Which is a measure of central tendency?

Question 7 options:

a)

interquartile range

b)

variance

c)

standard deviation

d)

median

8.

A health psychologist is interested in knowing whether the people in the local community exercise on a regular basis. She collects data from 100 local residents and classifies them as regular exercisers and nonregular exercisers. Which measure of central tendency would be appropriate to report?

Question 8 options:

a)

range

b)

mean

c)

mode

d)

variance

9.

Sally tests how many trials it took for seven rats to learn that a flashing light signals the presentation of food. These are Sally's data: 75, 109, 120, 114, 100, 124, and 93. Calculate the median.

Question 9 options:

a)

49.00

b)

112.50

c)

105.00

d)

109.00

10.

One advantage of the median over the mean is that the median:

Question 10 options:

a)

is not as affected by the presence of outliers in a data set.

b)

takes the differences between scores into account.

c)

can be used when researchers collect nominal-level data.

d)

can be used when researchers collect ratio-level data.

Explanation / Answer

1.
The above is the formula for:
d) frequency percentage.

2.
As frequency of Walnut Ripple or Rum Raisin is lowest, the correct option is,
C. replace either Walnut Ripple or Rum Raisin

3.
the correct value of the midpoint of the real limits is
340, the same as with the apparent limits of this interval.

4.
Interval- and ratio-level data are _____ and should be graphed with _____.
c) continuous or discrete; a histogram

5.
A frequency polygon with "normalish" shape will have:
c) one high point in the middle.

6.
The mode in the following set of data: 10, 2, 6, 1, 1, 2, 4, 5, 3, 4, 8, 10, 1, 9, and 7 is
c. 1.00 (As, 1 occurs maximum times)

7.
Which is a measure of central tendency?
d)median

8.
b. mean

9.
The data in sorted order is 75, 93, 100, 109, 114, 120, 124
The middle element is 109
d) 109.00

10.
One advantage of the median over the mean is that the median:
a) is not as affected by the presence of outliers in a data set.

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