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3 years ago

NEED HELP ASAP need help with number 2

Mathematics

1 answer:

Viefleur [7K]3 years ago

4 0

21/5.2
because in order to get mean you have to add all the numbers up and divide by the amount you added so 20+28+26+26+30+24+25+26+28+27= 210 divide by 10= 21
in order to get mad you take all the numbers and subtract them from the mean (what ever you get make sure the number is positive) so 21-20=1 28-21=7 and so on then add up the numbers and divide again to get 52 divide that by 10 and you get 5.2
because it is means to mad ratio the answer is 21/5.2

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The following data represent the number of flash drives sold per day at a localcomputer shop and their prices.Price Units Sold34

inysia [295]

Answer:

a)3145 x 0.01 = 31.45 3145- 31.45 = 3113.55

Compute the sample correlation 3113.55 -? we find the least square pressing at least 15x on the calculator then minus this from 3113.55 to find a better fit and minimum regression.

We add the differences of units then divide by distribution as seen below.

b) unsure.

c) = (see below) just test each number shown unit sold per day / price then x can show the differences in each number from day 1 to day 2.

d) = 16 sold.

Step-by-step explanation:

a) We count the units up and deduct from it from the equation p is recognized as units sold. R1 is cost R2 is total days.

b) The line of best fit is described by the equation ŷ = bX + a, where b is the slope of the line and a is the intercept (i.e., the value of Y when X = 0).

c) r 2= decimal ; the regression equation has accounted for percentage of the total sum of squares. You cna do this one.

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Day 1 = 34 / 28 = 1 = 1.21428571429 = 1 no difference day prior.

Day 2 = 336 / 28 = 12 = 12 = difference day prior is 11

Day 3 = 432 / 28 = 15 = 15.4285714286 = 15 difference day prior is 3

Day 4 = 635 / 28 = 23 = 22.6785714286 = 23 difference day prior is 8

Day 5 = 530 / 28 = 19 = 18.9285714286 = 19 difference day prior is minus - 4

Day 6 = 938 / 28 = 34 = 33.5 = 34 difference day prior is 15

Day 7 = 240 / 28 = 9 = 8.57142857143 = 9 difference day prior is minus -25

Total days 7 = Total revenue / price = average units sold

Average units sold total = 1+ 12+15 +23 +19+34+9 = 113 rounded.

Average units sold total = 1.21428571429 + 12 + 15.4285714286

+ 22.6785714286

+18.9285714286

+ 33.5

+ 8.57142857143 = 112.321428572 units sold weekly when priced at $28

To answer D we divide this by 7 to show;

112.321428572/ 7 = 16.0459183674

Daily units sold = 16

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Answer:

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