MMW Review

Intro Stats

160

The branch of applied math that deals with the collection, organization, presentation, analysis, & interpretation of data

A. Geometry

B. Statistics

C. Algebra

D. Trigonometry

B. Statistics

320

These values are obtained by counting.

A. Discrete

B. Continuous

C. None of the above

A. Discrete

480

It displays the frequency of discrete & continuous data using connected rectangular bars.

A. Histogram

B. Line Graph

C. Bar Graph

D. Pie Chart

A. Histogram

640

It refers to the middlemost number once the data has been organized.

A. Mode

B. Mean

C. Median

C. Median

800

Grouped or Ungrouped:

This type of data is given in intervals.

Grouped

FDT

160

How many steps do we have in constructing a frequency distribution table?

A. 2

B. 1

C. 4

D. 3

D. 3

320

It is a device for organizing & representing grouped data.

A. Frequency Table

B. Distribution Table

C. Cumulative Frequency Table

D. Frequency Distribution Table

D. Frequency Distribution Table

480

Which of the following is the Sturges' formula?

A. n = 1 + .322logN

B. n = 1 + 2.322logN

C. n = 1 + 3.322logN

D. n = 3.322logN

C. n = 1 + 3.322logN

640

The formula R = HS - LS refers to?

A. Range

B. Intervals

C. Class Size

A. Range

800

The formula i = R/n refers to?

A. Intervals

B. Range

C. Class Width

C. Class Width

Ungrouped

160

Solve for mean:

27, 30, 30, 34, 38, 40, 42, 48, 58, 62, 77

Mean = 44.18

320

Find the mode:

22, 26, 28, 40, 56, 63, 70, 71, 74, 76

Mode = no mode/none

480

Find the median:

20, 20, 26, 27, 28, 30, 36, 43, 43, 44, 63, 70

Median = 33

640

Solve for mean:

14, 16, 21, 32, 37, 42, 42, 43, 44, 44, 46, 50, 53, 57, 71, 81, 82

Mean = 45.59

800

Find the median:

13, 18, 22, 24, 24, 32, 36, 37, 38, 41, 45, 51, 52, 60, 61, 68, 72, 80, 86, 88

Median = 43

Grouped

160

Solve for mean:

Sum of f = 37

Sum of fx = 2322.5

Mean = 62.77

320

Solve for mode:

L_MO = 10.5

D₁ = 15

D₂ = 7

i = 14

Mode = 19.04

480

Solve for mode:

L_MO = 24.5

D₁ = 4

D₂ = 3

i = 14

Mode = 32.48

640

Solve for median:

N/2 = 24

L_MD = 51.5

<cf = 21

f_MD = 6

i = 14

Median = 58.5

800

Solve for median:

N/2 = 16

L_MD = 50.5

<cf = 15

f_MD = 4

i = 13

Median = 53.75