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Alex_Xolod [135]
3 years ago
10

1a. 182 Freshmen were surveyed on whether they participate in a sport. 110 said yes, 40 boys said no, 90 girls were in the surve

y. **Hint: How to make a table in eClass*
a. Create a two way frequency table and include marginal frequency.
Mathematics
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

           yes    no     total

girls     58     32     90

boys    52     40     92

total     110    72     182

Step-by-step explanation:

if 182 freshmen were surveyed and 110 said yes, then 182 - 110 = 72 said no

if 40 boys said no, then 72 - 40 = 32 girls said no

if 90 girls were surveyed, then 182 - 90 = 92 boys were surveyed

if 40 boys said no, then 92 - 40 = 52 said yes

if 32 girls said no, then 90 - 32 = 58 said yes

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Answer:

Option (A) 0.40951

Step-by-step explanation:

We are given the following information in the question:

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Let the random variable X represent the number of times he hits ring of the target with a shot of the arrow.

The probability distribution of X is

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P(x):    0.00001   0.00045  0.00810   0.07290   0.32805   0.59049

The mean of discrete probability distribution is given by:

\mu = \displaystyle\sum x_iP(x_i)\\\\= 0(0.00001) + 1(0.00045) + 2(0.00810) + 3(0.07290) + 4(0.32805) + 5( 0.59049)\\= 4.5

Now, we have to evaluate

P(x

Option (A) 0.40951 t is the probability that the number of times Luke will hit the inner ring of the target out of the 5 attempts is less than the mean of X.

4 0
3 years ago
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Bogdan [553]
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3 0
3 years ago
In the diagram, point P is a point of tangency. Find the radius r of circle O.​
vlabodo [156]

Answer:

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Step-by-step explanation:

From the figure attached,

QP is a tangent to the circle O at the point P.

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3 years ago
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aksik [14]

Answer:

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Step-by-step explanation:

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3 years ago
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Alina [70]
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