PROBS AND STATS! The mean rate of satellite television from a sample of households

was $39.00 per month, with a standard deviation of $3.50 per month.

If the data shows a bell-shaped distribution, find the following

(DO NOT ROUND YOUR ANSWERS FOR THIS SECTION)

Between what two values does 68% of the data lie?

What percent of the monthly cable bills would you expect to be less than $32?

What percent of the monthly cable bills would you expect to be more than $46?

What percent of the monthly cable bills would you expect to be between $39 and $49.50?

Fifty percent of the monthly cable bills are more than what amount?

Empirical rule dictates that, in a Bell-shaped distribution, 95% of data lies within 2 standard deviation on either side of the mean.

Therefore,

Lower value = mean-2SD = 70-2*8 = 70-16 = 54

Upper value = mean+2SD = 70+2*8 = 70+16 = 86

Then, 95% of the data lies between $54 and 84. These values can also be taken as the true mean of the population considering 95% confidence when sample mean has been calculated. In this regard, 2SD can be regarded as the margin error.

Step-by-step explanation:

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

hi there!

the answer to this question is d: 35

step-by-step explanation:

5 to the power of 2 is 25

2 multiplied by 5 is 10

then you add the 2 numbers and you get 35