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3 years ago

Which below are types of estimation in statistics?

1 answer:

3 0

Both the first and the second optiosn are types of estimation in statistics. The third one, I should say is not a valid statistical procedure. I hope this helps

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Lana71 [14]

i think

SAS

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2 years ago

9. 2 1/8 + 1 5/12

MrMuchimi

Answer:

9) Exact Form: 85 /24 Decimal Form: 3.541 6 Mixed Number Form: 3 13 /24

10) Exact Form: 17 /18 Decimal Form: 0.9 4

11) Exact Form: 3 /5 Decimal Form: 0.6

Step-by-step explanation:

9) Convert the mixed numbers to improper fractions, then find the LCD and combine.

10) Simplify the expression.

11) To subtract fractions, find the LCD and then combine.

4 0

2 years ago

Which weighs more, a pound of cotton or a pound of bricks?

makvit [3.9K]

Is this a trick question? They're both a pound.

7 0

3 years ago

You go to a restaurant and order $137.61 worth of food. You decide to tip the waiter

worty [1.4K]

Answer:

I got 2

Step-by-step explanation:

8 0

2 years ago

2. Describe how to use the conjugate to divide 2 − i by 3 + 2i, and then find the quotient.

DaniilM [7]

Answer:

$\frac{4}{13}-\frac{7}{13}i$

Step-by-step explanation:

$\frac{2-i}{3+2i}$

Multiply and divide by the conjugate.

The conjugate is the denominator with the sign of the complex number the opposite of the denominator.

$\frac{2-i}{3+2i}\frac{3-2i}{3-2i}\\ =\frac{2\times (3-2i)-i\times (3-2i)}{3^2-(2i)^2}\\ =\frac{6-4i-3i+2i^2}{9+4}\\ =\frac{4-7i}{13}\\ =\frac{4}{13}-\frac{7}{13}i$

Quotient = $\frac{4}{13}-\frac{7}{13}i$

7 0

3 years ago