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ladessa [460]
3 years ago
13

PLEASE  HELP AND PLEASE HAVE THE CORRECT ANSWER !!!!!! THANK YOU

Mathematics
2 answers:
iragen [17]3 years ago
7 0
1) p + 8 
Substitute 2 in for the variable. 
2 + 8 = \fbox {10}

2) 3p
Substitute 2 in for the variable.
3(2) = \fbox {6}

3) 16 - p
Substitute 2 in for the variable.
16 - 2 = \fbox {14}

4) -12 ÷ p
Substitute 2 in for the variable.
-12 ÷ 2 = \fbox {-6}
Alex17521 [72]3 years ago
6 0


1.) = 10

2.) = 6

3.) = 14

4.) = -6

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Verdich [7]

Answer:

1. z = -1.91429

The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference

2. 2.7792%

Step-by-step explanation:

1. Relative to the WHO data, what is this girls z-score?

z score formula is:

z = (x-μ)/σ, where

x is the raw score = 44.5 cm

μ is the population mean = 47.18cm

σ is the population standard deviation = 1.40cm

z = 44.5 - 47.18/1.40

z = -1.91429

What does the z score tell us?

The z score tells us that the head circumference of the girl with the down syndrome ( 44.5 cm) is 1.91429 standard deviations below the mean or average head circumference

2. Using the WHO data in a normal model, what percentage of the girls has a head circumference that is smaller than the girl with Down's Syndrome?

z score = -1.91429

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