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DaniilM [7]
3 years ago
8

A sample of five words was randomly selected from a 200-page book. The average number of letters of the five words was calculate

d. The process was repeated 10 times. The average word length of each of the 10 samples is given in the table.
What is the best estimate for the average word length in the whole book?
A) 4.07 letters
B) 4.15 letters
C) 4.38 letters
D) 4.49 letters

Mathematics
2 answers:
Alona [7]3 years ago
8 0

Answer:

yep the answer is D

Step-by-step explanation:

_/x =  

3.7 + 4.4 + 4.1 + 3.6 + 4.5 + 5.3 + 4.9 + 4.8 + 5 + 4.6

10

= 4.49 letters

Butoxors [25]3 years ago
4 0
The answer would be A).
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kotykmax [81]

Answer:

The correct answer is:

(a) 0.0884

(b) 0.0190

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(d) 0.2921

Step-by-step explanation:

(a)

= P(1.26

= P(Z

= 0.9846-0.8962

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(b)

= P(2.05

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= 0.9989-0.9798

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(c)

= P(-2.05

= P(Z

= 0.9798-0.0202

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(d)

= P(Z>0.55)

= 1-P(Z

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8 0
3 years ago
Kathy and Mark Smith believe investing in retirement is critical. Kathy begin investing 20% of each paycheck in a retirement acc
daser333 [38]

Kathy’s retirement savings is $11,60,000

Mark’s retirement savings is   $2,90,000

Total retirement savings amount is $1,450,000

Kathy’s investment is 4 times more than Mark

Calculation of future value at the end of 6 years:

Particulars                                                                 Values

Total retirement savings                                           $1450000

Mark investment (times)                                                1

Number of times kathy's investment is more       B3x4              =  4

Total                                                                       B34 = B3+B4 = 5

Kathy's retirement savings                                  (B2*B4)/B5     = $11,60,000

Mark's retirement savings                                      B7/B4           = $2,90,000

<h3>What is investment ?</h3>

Investing is holding assets with the goal of achieving value over a period of time. Investing requires the sacrifice of some current asset, such as time, money, or effort. The purpose of financial investments is to obtain income from the invested property. Investments typically fall into three main categories: stocks, bonds, and cash. Each group has many different rankings. Here are six types of investments you can consider for long-term growth, and what you should know about each

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5 0
2 years ago
Can u pls help and put them by the answer ​
tiny-mole [99]

Answer:

Step-by-step explanation:

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6 0
4 years ago
There are white,red,black and blue cars . The number Of each colour car is a factor of 36. There are twice as many white cars as
liraira [26]
Given:
White Car
Red Car
Black Car
Blue Car

Each color car is a factor of 36 ⇒ 2 * 2 * 3 * 3

There are twice as many white cars as red cars.
Assume Red cars is X ; then White cars is 2X.

The number of blue cars is twice that of black cars.
Assume Black cars is Y ; then Blue cars is 2Y.

The number of black cars is the product of two different prime numbers:
2 and 3 are prime numbers; they are also factors of 36. So, black cars is 2 times 3 is 6.

If Black car is 6, then blue cars is 12 (2 * 6).

Red cars is a square number that is not a multiple of 2. 2 and 3 are factors of 36. Square of 3 is 9. It is not a multiple of 2.

If red cars is 9, then white cars is 18 (2*9).

Total number of cars is 45.

White = 18
Red    =  9
Black =  6
Blue   = 12

7 0
4 years ago
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