1.

To determine the distribution of the height of female grade 6 students in a developing country, a researcher collected height data (in inches) from one grade 6 class and reported them as follows:

69 65 53 62 53 63 58 54 57 54 58 59 56 70 57 70 58 57 63 57 69 55 70 55 61

Calculate the mean, median and mode.

Mean==

Round to 2 decimal places

Median==

Mode::

• +

2.

The following data consists of birth weights (pounds) of a sample of newborn babies at a local hospital:

6.49.67.49.78.37.78.98.36.77.67.26.49.67.49.78.37.78.98.36.77.67.2

Calculate the following:

a.Range Range==

b.Variance s2=2=

Round to 2 decimal places

c.Standard Deviation s==

Round to 2 decimal places

3.

The recommended minimum credit card payment for a sample of 100 credit card holders is summarized below:

Minimum Payment ($)	Frequency
15 to under 30	35
30 to under 45	32
45 to under 60	17
60 to under 75	7
75 to under 90	9

a. Estimate the mean minimum payment.

Mean:

Round to 2 decimal places.

b. Using that median class, estimate the median minimum payment.

Median:

c. What is the modal class?

Modal Class:

(click to select)15 to under 3030 to under 4545 to under 6030 to under 4575 to under 90

d. Describe the shape of the distribution in terms of symmetry/skewness.

Skewness:

(click to select)Positively SkewedNegatively Skewed

4.

A search on Best Barryo Mobile's website for "smartwatch" produced ninety-two results, 40 of which are actual smartwatches. Their prices are summarized in the frequency table below:

Price ($)	Number of Watches
50 to under 100	4
100 to under 150	4
150 to under 200	8
200 to under 250	6
250 to under 300	12
300 to under 350	6

a.Calculate an approximate value for the sample variance.

s2=2=

Round to two decimal places if necessary

b.Calculate an approximate value for the sample standard deviation.

s==

Round to two decimal places if necessary

I got the wrong answers the last time, please I need the correct answers this.