Categorical Or Quantitative Variables, Histogram, Pie-Chart And Bar Graph Worksheet printable pdf download

Categorical Or Quantitative Variables, Histogram, Pie-Chart And Bar Graph Worksheet

1. Determine whether the following variables are categorical or quantitative.

(a) Number of laps a subject can swim

(b) Color of a randomly selected beetle

(d) Hometown

(e) Life of a battery measured in hours

2. The data below represents measurements of the weight of a candy bar in deca-

grams.

(a) Create a histogram with an appropriate number of intervals which shows

the distributions of this data.

33 30 25 60 63

43 26 35 62 44

45 70 14 33 54

31 33 44 23 47

54 56 43 38 57

64 22 42 13 44

(b) Describe the shape of this data. Is the distribution symmetric? Are there

any outliers?

3. A study is conducted where ﬁve colored sticky pads (red, orange, yellow, green,

and purple) are placed in a ﬁeld and after some time, the insects which have

been trapped on each pad is counted : The results of the study are displayed

in the table below. Create a pie-chart and a bargraph to show the distribution

Red Orange Yellow Green Purple

of this data.

4. Compute the mean, median,

and the standard deviation for the following

observations:4, 5 ,7 , 12 ,5, 8.

5. If the mean of 20 observations is 32, then what is the sum of all of the observa-

tions?

6. A student received scores of 92, 83, and 71 on three quizzes. What is the lowest

score that the student can get on the next test, which is out of 200, to achieve

a mean of at least 80?

7. If your scores of the ﬁrst four exams are 98, 100, 90 and 97, what do you need

to make on the next exam for your overall mean to be at least 90?

Categorical Or Quantitative Variables, Histogram, Pie-Chart And Bar Graph Worksheet