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hjlf
3 years ago
6

A study addressed the issue of whether pregnant women can correctly predict the gender of their baby. Among 104 pregnant​ women,

57 correctly predicted the gender of their baby. If pregnant women have no such​ ability, there is a 0.327 probability of getting such sample results by chance. What do you​ conclude?
Mathematics
1 answer:
FromTheMoon [43]3 years ago
7 0

Answer:

Hence the study seem to be inconclusive since the probability of getting those result by chance are somewhat very high.

Step-by-step explanation:

The result seem to be inconclusive since the probability of getting those result by chance are somewhat very high.

Since the probability of getting such sample result by chance are very high, we cannot assume that the women have the ability to predict the gender of their babies.

Hence the study seem to be inconclusive since the probability of getting those result by chance are somewhat very high

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A guy wire is attached to the top of a radio antenna and to a point on horizontal ground that 40 m from the base of the antenna.
frutty [35]

Answer:

The length of the wire is 76.19 m.

Step-by-step explanation:

It is given that a guy wire is attached to the top of a radio antenna and to a point on horizontal ground that 40 m from the base of the antenna.

It means base of the right angled triangle is 40 m.

The wire makes an angle of 58deg 20min with the ground.

1 degree = 60 min

Using this conversion convert the given angle in degree.

58^{\circ}20'=58^{\circ}\frac{20}{60}^{\circ}=58\frac{1}{3}^{\circ}=\frac{175}{3}^{\circ}

In a right angled triangle

\cos \theta=\frac{adjacent}{hypotenuse}

\cos (\frac{175}{3}^{\circ})=\frac{40}{hypotenuse}

0.525=\frac{40}{hypotenuse}

hypotenuse=\frac{40}{0.525}

hypotenuse=76.190

Therefore the length of the wire is 76.19 m.

3 0
3 years ago
Can anyone help me on this math test real quick here is one of the questions!!
Valentin [98]

Answer:

D. 9/16

Step-by-step explanation:

3/4*3/4=9/16

6 0
3 years ago
Read 2 more answers
2x-10+x+x =180 find the value of x​
Oxana [17]

Answer: 47.5

Step-by-step explanation:

Given

2x-10+x+x=180

combine like term x      

       4x-10=180

addition property of equality (add 10 on both sides)

             4x=190

division property (divide 4 on both sides)

               x=47.5

Hope this helps!! :)

Please let me know if you have any question or need any further explanation

5 0
4 years ago
Read 2 more answers
A watercolor painting is 19 inches long by 10 inches wide. Ramon makes a border around the watercolor painting by making a mat t
yawa3891 [41]

Answer:

hn

Step-by-step explanation:

3 0
3 years ago
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A triangular flag has an area of 187.5 square inches. The base of the flag measures 25 inches. How tall is the triangular flag?
german
15 inches
the formula for the area of a triangle is Area=(1/2)(base)(height)
since the problem is looking for the height, we can rewrite it as
 Height=(Area)/((1/2)(Base))
then the number must be substituted in
Height=(187.5)/((1/2)(25))
and the answer is 15 inches.
6 0
3 years ago
Read 2 more answers
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