Answer:
Step-by-step explanation:
We know that at a price of $ 150, 5 televisions are sold and at a price of $ 100, 10 televisions are sold.
We must write a linear equation for this situation.
The equation of the line will have the following form
Where m is the slope of the line and b is the intercept with the p axis
The equation is:
Now we know that the revenue m is the product of the price p for the quantity sold x.
Answer:
~15.55 is the mean.
Step-by-step explanation:
The class of frequency is given as 0-9, 10-19 and 20-29.
First of all, let us taken middle value of class:
Formula for mean:
where f is the frequency
and m is the mean value calculated in above step (4.5, 14.5 and 24.5)
The frequencies are given as:
4.5 - 24
14.5 - 20
24.5 - 32
Putting the values in above formula:
Please refer to the attached image that contains the table for calculation of mean.
So, mean = ~15.55
