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2 years ago

According to government birth statistics, the probability of a woman

Mathematics

2 answers:

Maurinko [17]2 years ago

4 0

Answer:

0.985

Step-by-step explanation:

lyudmila [28]2 years ago

3 0

To find the probability of not having twins, we can subtract the probability of having twins from 1. This is because probabilities always add up to 1.

1 - 0.015 = 0.985

The probability of not having twins is 0.985.

Hope this helps!! :)

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On an architect's drawing of the floor plan for a house, 1 inch represents 3 feet if a room is represented on the floor plan by

r-ruslan [8.4K]

3.5×3=10.5 ft
5×3=15
15×10.5=157.5 square feet

5 0

3 years ago

Plastic parts produced by an injection-molding operation are checked for conformance to specifications. Each tool contains 15 ca

Rainbow [258]

Answer:

(A) 0.006593 or 0.6593%

(B) 0.01538 or 1.538%

Step-by-step explanation:

The total number of possibilities to pick 3 parts out of 15 possible parts is given by the following combination:

$n=\frac{15!}{(15-3)!3!}=\frac{15*14*13}{3*2*1}\\n=455\ ways\\$

(A) There are only three possibilities for which the inspector finds exactly one nonconforming part (NCC, CNC, CCN). Therefore, the probability is:

$P(N=1) = \frac{3}{455}=0.006593 =0.6593\%$

(B) There are three possibilities for which the inspector finds exactly one nonconforming part, three possibilities for two nonconforming parts (NNC, CNN, NCN), and one possibility for all nonconforming parts (NNN). The probability that the inspector finds at least one nonconforming part is:

$P(N>0) =P(N=1)+P(N=2)+P(N=3) \\P(N>0) = \frac{3}{455}+ \frac{3}{455}+ \frac{1}{455}\\P(N>0) =0.01538 =1.538\%$

5 0

3 years ago

Sarah found that the product of 49 and 805 is 3,165. How would finding an estimate help her know that the answer is NOT reasonab

Dovator [93]

Answer:

49 +805=3,165

Step-by-step explanation:

answer

she will have to count

6 0

2 years ago

Make X the subject :))

Rom4ik [11]

Answer:

$x = \frac{3 + 8y}{y - 1}$

Step-by-step explanation:

$y = \frac{x + 3 }{x - 8}$

Cross multiply,

y(x - 8) = x +3

yx - 8y = x + 3

yx - 8y -x = 3

yx - x = 3 + 8y

(y - 1)x = 3 +8y

$x = \frac{3 + 8y}{y - 1}$

3 0

3 years ago

please help I'm actually crying! Find A and B if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2

Eddi Din [679]

Answer:

awwww dont cry. i know this isnt helpful but if it makes u feel better, im stuck on it too. Take a deep breath and hope someone will come and help us, <3

Step-by-step explanation:

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2 years ago