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grigory [225]
3 years ago
13

If 12 Out of 30 people prefer KitKat bars over almond joy,how many people out of 330 would you predict would prefer KitKat.

Mathematics
2 answers:
miv72 [106K]3 years ago
8 0

The empirical probability that people would prefer KitKat is 12/30, or 0.4.

Then, among 330 people, 0.4(330 people), or 132, would prefer KitKat.

polet [3.4K]3 years ago
4 0
I would say 112. Because if 12 out of 30 people prefer KitKat bars then 112 would prefer 330
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Read 2 more answers
(a) How would you characterize the relationship between money spent on advertising and items sold?
Mashcka [7]

Answer:

a) Positive Correlation

b) 69.5

c) Base advertisement fee    

Step-by-step explanation:

a) Relationship between money spent on advertising and items sold

If we spent greater amount of money on advertisement, thus, we create more awareness and thus, the number of item sold increases.

Similarly, if less money is spent on advertisement, the number of items sold will be less.

Thus, the money spent on advertisement varies directly with the number of items sold.

Thus, they have a positive relationship or a positive correlation.

b) Money spent in advertising to sell 30 items

We are given the function:

y= 1.6x+ 21.5

We put x = 30

y(30)= 1.6(30)+ 21.5\\y(30) = 69.5

Thus, the score predicted by model is 69.5 units.

c) Interpretation of 21.5

Comparing the equation to a general linear equation, we get

y = mx + c

where m is the slope and c is the y-intercept.

y-intercept tells us the value of function when x is zero.

Thus, for the given scenario it will tell about the basic advertisement fee to be paid if we want to sell 0 products.

Comparing we get,

c  = 21.5

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