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Svetradugi [14.3K]
3 years ago
8

Heights of American adult women are normally distributed with mean 63.6 inches and standard deviation 2.5 inches. Find the heigh

t of an adult woman that corresponds to the 80th percentile.
Mathematics
1 answer:
rusak2 [61]3 years ago
7 0

Answer:

65.7

Step-by-step explanation:

Given ;

Mean, m = 63.6

Standard deviation, s = 2.5

80th percentile = 80 / 100 = 0.8

The Zscore corresponding to the 80th percentile ; Z < P = 0.842 (Z probability calculator)

Zscore = (x - m) / s

0.842 = (x - 63.6) / 2.5

0.842 * 2.5 = x - 63.6

2.105 = x - 63.6

x = 63.6 + 2.105

x = 65.705

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ME RESULVEN ESTO POR FA
Readme [11.4K]

Answer:

1) 5

2) -4

3) 12

4) -10

5) 2.8

6)-2

7) 2

8) -6

9) -1

4 0
3 years ago
Write the smaller solution first, and the larger solution second. h(x)=-5x^2 +180h(x)=−5x 2 +180
katrin2010 [14]

Answer:

x = -6,6

Step-by-step explanation:

h(x)=−5x^2 +180

Assuming you want to find the zero's

0 =−5x 2 +180

Subtract 180 from each side

0-180=−5x^2 +180-180

-180 = -5x^2

Divide each side by -5

-180/-5 = -5x^2/-5

36 = x^2

Take the square root of each side

±sqrt(36) = sqrt(x^2)

±6 = x

x = -6,6

7 0
4 years ago
Read 2 more answers
A 6-pound bag of sugar contains 681 one-teaspoon servings and costs $4.49. A batch of muffins uses 1 cup of sugar. How many whol
irina1246 [14]
681 tsp/48 tsp = 14.1875
If you round down, you get 14 servings.
6 0
3 years ago
Suppose you toss a fair coin 4 times. Let X = the number of heads you get. Find the probability distribution of X.
lesantik [10]

Answer:1 and 2:4

Step-by-step explanation: Because  if it's fair you have  a 50 percent chance of heads or tails. and if u write it as a ratio you would get 2_4 you will most likely learn this in 7th grade or 6th

3 0
3 years ago
two blocks of wood are shaped as right rectangular prism the smaller block has a length of 9 cm and a width of 3 cm and a height
AlexFokin [52]

Answer:

1512 cm³

Step-by-step explanation:

Formula

Volume of right rectangular prism = Length × Breadth × Height

As given

Two blocks of wood are shaped as right rectangular prisms.

The smaller block has a length of 9 cm, a width of 3 cm, and a height of 7 cm.

As given

The dimensions of the larger block are double the dimensions of the smaller block.

Length of the larger block = 2 × Length of the smaller block

                                           = 2 × 9

                                           = 18 cm

Breadth of the larger block = 2 × Breadth of the smaller block

                                           = 2 × 3

                                           = 6 cm

Height of the larger block = 2 × Height of the smaller block

                                           = 2 × 7

                                           = 14 cm

Put in the formula

Volume of larger wooden block = 18 × 6 × 14

                                                    = 1512 cm³

Therefore the volume of the wooden block is 1512 cm³ .

7 0
3 years ago
Read 2 more answers
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