7th grade Math

4th Nine WeeksExam Study Guide

The following topics are on your4th nine weeks exam. Your exam will take place on Thursday and Friday, May 19-20, 2016.

Formulas

Circles

AreaA = r2

CircumferenceC = d or C = 2r

Volume

Rectangular PrismV = Bh where B = lw

Triangular PrismV = Bh where B = bh

Pyramids V = Bh where B = lw or B = bh

Surface Area

Rectangular Prism S.A. = the sum of the area

Triangular Prism of all the faces

Pyramids ***Remember!!!***

Area of Rectangles = lw

Area of Triangles = bh

Statistics

Measures of Central Tendency

Mean

Median

Mode

Measures of Variation

Range

Quartiles

Interquartile Range

Outliers

Statistical Displays

Box-and-Whisker Plots

Stem-and-Leaf Plots

Histograms

4th Nine Weeks Exam Study Guide

Find the circumference of each circle. Round to the nearest tenth, if necessary. (Use 3.14 for .)

1.

2.

Find the area of each circle. Round to the nearest tenth. (Use 3.14 for .)

3.

4.

Find the area of each figure. Round to the nearest tenth, if necessary.

5.

6.

Find the volume of each 3D figure below. Round to the nearest tenth, if necessary.

7.

8.

9.

10.

Find the surface area of each 3D figure. Round to the nearest tenth, if necessary.

11.

12.

13.

  1. The Crosstown Cougars played a great basketball game last night on their home court. The table below shows the number of points each player scored throughout the game. Give the mean, median, mode, and range of the data. Then find the mean, median, mode, and range of the data if Nelda did not participate.

Player’s Name / Points Scored
Jasmine / 8
Paula / 5
Veronica / 0
Kira / 2
Betty / 11
Wynona / 6
Nelda / 8
Denise / 4
  1. Find the upper quartile, lower quartile, interquartile range, and any outliers for the set of data.

82, 55, 54, 57, 68, 163, 108, 91,

64, 118, 56, 68, 159, 11, 64

  1. Draw a box-and-whisker plot for the set of data.

48, 44, 54, 31, 27, 52, 25, 37, 34, 34, 50

  1. The test scores for a math test are displayed in the following box-and-whisker plot.

What percent of the students had scores between 75 and 94?

  1. Display the data in the chart in a stem-and-leaf plot.

Students’ Stride Lengths

StudentStride Length (cm)

Taj84

Jasmine59

Gregory67

Emily74

Darnell78

Lindsay66

Stephen65

Tommy80

  1. The stem-and-leaf plot shows the weights in ounces of a variety of boxes of cereal.

Cereal Box Weights
Stem / Leaf
1 / 5 6 8 8 8 8
2 / 2 2 4 4 4 5 5 8 8
3 / 0 2 2 2
1|5 =15 ounces

What is the most common weight for a box of cereal?

  1. The list shows the points allowed by defense in certain types of selection tests. Make a histogram to represent the data in the list.

Points Allowed by Defense
7 / 11 / 13 / 16 / 22
23 / 26 / 9 / 12 / 10
12 / 15 / 20 / 15 / 22
20 / 24 / 22 / 29 / 25