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expeople1 [14]
4 years ago
15

Which of the following statements about observational studies is true? A census is always preferable to a sample survey since it

includes the entire population. II. A neutral designer of a survey who has no conscious predisposition toward any particular conclusion can still produce biased data. III. Statistical inference is not necessary when a census is conducted properly. (A) I only (B) II only (C) I and II (D) I and III (E) II and III I.
Mathematics
1 answer:
Rashid [163]4 years ago
5 0

Answer:c

Step-by-step explanation:

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Distributive property?
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PLEASE HELP IM SO STUCK ILL MARK YOU BRIANLIEST!!! 30 POINTS Given the expression: 6x10 − 96x2 Part A: Rewrite the expression by
Murljashka [212]

Answer:

6x^2 ( x^2 -2) ( x^2 +2)(x^2+2x+2)(x^2-2x+2)

Step-by-step explanation:

6x^10 − 96x^2

Factor out 6x^2

6x^2 ( x^8 - 16)

Notice that inside the parentheses we have the difference of squares

6x^2 ( x^4 ^2 - 4^2)  a^2 - b^2 = (a-b) (a+b)

6x^2 ( x^4 -4) (x^4 +4)

Notice that x^4-4 is also the difference of squares

6x^2 ( x^2^2 -2^2) (x^4 +4)

6x^2 ( x^2 -2) ( x^2 +2) (x^4 +4)

Note also that x^4 + 4 can be factored into (x^2+2x+2)(x^2-2x+2)

6x^2 ( x^2 -2) ( x^2 +2)(x^2+2x+2)(x^2-2x+2)

3 0
4 years ago
James is buying a table.He finds the same table for sale in two different shops.
mina [271]

"Table World" is quoting a better price

<u>Step-by-step explanation:</u>

The shop "Table World" is quoting a price of 140 inclusive of 17.5% VAT

that means 140 is the final price a customer needs to pay.

                       

While other shop"Tables R us" is quoting a price of 120 without VAT

so we need to add VAT in the price to find out the final price

                                           price+VAT on the price

                                          =120+120*(17.5/100)

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                                          =120+21

               so final price      =141

so comparatively "Table World" is quoting a better price

6 0
3 years ago
Shirley got 72% on a Chemistry exam. The test was marked out of 150.
tensa zangetsu [6.8K]

Answer:

Nhjj

Step-by-step explanation:

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Answer:

300

Step-by-step explanation:

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