There are many cell phone case options on the market. This discretionary item comes in a variety of colors, materials, thicknesses, protection levels, and more. Amit runs a small buisness that sells computer and phone case accessories. he has kept the following inventory of cell phone case sales for similar model phones:$19.99, $8.99, $35.99, $49.99, $49.99, $39.99, $99.99, $79.99, $35.99, $19.99, $49.99, $29.99, $49.99, $59.99, $35.99, $49.99, $19.99, $8.99, $29.99, $35.99. Using sigma notation calculate the mean cell phone case price. round your answer to the nearest cent. construct a frequency distribution for the data. use the frequency distribution to determine the mean.

$40.59

$40.59

Step-by-step explanation:

Given the data below :

$19.99, $8.99, $35.99, $49.99, $49.99, $39.99, $99.99, $79.99, $35.99, $19.99, $49.99, $29.99, $49.99, $59.99, $35.99, $49.99, $19.99, $8.99, $29.99, $35.99

The mean of the sample data :

Σ(X) / n =

Σ(X) = $811.8

n = 20

Σ(X) / n = $811.8 / 20

Mean = $40.59

Frequency distribution:

Intervalffx

8.992 17.98

19.99359.97

29.99259.98

35.994143.96

39.99139.99

49.995249.95

59.99159.99

79.99179.99

99.99199. 99

Total20811.8

Mean = Σfx / Σf

Mean = 811.8 / 20

Mean = 40.59

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

answer: 88

step-by-step explanation: