# math

A student constructs a frequency distribution where the frequency of the first class is 8 and a corresponding histogram with the area of the bar in the first class is 80. The frequency for the second class is twice the frequency of the first class. In the histogram, the area of the bar corresponding to the second class is four times the area of the bar corresponding to the first class. What is the frequency of the second class and the area of the bar corresponding to the second class?

1. frequency: 2*8=16
area: 4*80=320

posted by Steve

## Similar Questions

1. ### MATH

The frequency distribution indicates the heights of 45 male high school seniors. Height(in.) Number of Males 64 2 65 6 66 7 67 9 68 10 69 6 70 3 71 0 72 2 a) Construct a histogram of the frequency distribution. b) Construct a
2. ### st

7) (8 pts) Construct a histogram and a frequency polygon for the following frequency distribution Miles Number of Commuters Class Frequency 0 - 24 4 25 - 49 10 50 - 74 11 75 - 99 5 100 –124 1
3. ### math

A statistics student had excluded three outlier values when constructing a histogram of a frequency distribution. His teacher directed him to remake the histogram and include the outliers. Which of the following must be true? 1The
4. ### statistics

7) (8 pts) Construct a histogram and a frequency polygon for the following frequency distribution Miles Miles Number of Commuters Class Frequency 0 - 24 4 25 - 49 10 50 - 74 11 75 - 99 5 100 –124 1
5. ### Statistics[Math]

Construct a histogram for following frequency distribution : Class-intervals Frequency 0-4 5 5-9 8 10-14 12 15-19 9 20-24 4
6. ### Math...LOST!!

Heights The frequency distribution indicates the heights of 45 male high school seniors. Height(in.) Number of Males 64 2 65 6 66 7 67 9 68 10 69 6 70 3 71 0 72 2 a) Construct a histogram of the frequency distribution. b)
7. ### statistics

I have done an entire project based on football scores from a certain team over the last 3 years and I'm not sure what information I can get from my answers. Ive done a frequency distribution table, Ogive, Histogram,cumulative
8. ### Math

Construct a histogram and a frequency polygon for the following frequency distribution Miles
9. ### math

"Relative frequency" is the same as which of the following? frequency histogram cumulative frequency distribution proportion I think its proportion, am I right?
10. ### College Mathematics

U.S. Presidents. The ages of the 44 presidents at their first inauguration (as of 2011) are: 57 57 49 52 50 42 54 55 64 61 61 64 56 47 51 51 56 46 57 54 50 46 55 56 60 61 54 57 68 48 54 55 55 62 52 47 58 51 65 49 54 51 43 69 a.

More Similar Questions