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3 years ago

Please help with these! ( im not sure if you can see it)

Mathematics

2 answers:

sashaice [31]3 years ago

3 0

Answer:

Im not sure how to answer

Step-by-step explanation:

But you find the area of all the square and rectangles and then add them to find it

storchak [24]3 years ago

3 0

Answer: first two

1. 290

2. 90

IM PRETTY SURE THESE ARE RIGHT!! :D

Step-by-step explanation:

25 + 25 = 50

---

5 x 12 = 60

60 x 4 = 240

---

240 + 50 = 290

----------------------

2 x 9 = 18

18 x 4 = 72

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2 x 2 = 4

4 x 2 = 8

---

8 + 72 = 90

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A selective university advertises that 96% of its bachelor’s degree graduates have, on graduation day, a professional job offer

OLEGan [10]

Answer:

The probability is $P( p < 0.9207) = 0.0012556$

Step-by-step explanation:

From the question we are told

The population proportion is $p = 0.96$

The sample size is $n = 227$

The number of graduate who had job is k = 209

Generally given that the sample size is large enough (i.e n > 30) then the mean of this sampling distribution is

$\mu_x = p = 0.96$

Generally the standard deviation of this sampling distribution is

$\sigma = \sqrt{\frac{p (1 - p )}{n} }$

=> $\sigma = \sqrt{\frac{0.96 (1 - 0.96 )}{227} }$

=> $\sigma = 0.0130$

Generally the sample proportion is mathematically represented as

$\^ p = \frac{k}{n}$

=> $\^ p = \frac{209}{227}$

=> $\^ p = 0.9207$

Generally probability of obtaining a sample proportion as low as or lower than this, if the university’s claim is true, is mathematically represented as

$P( p < 0.9207) = P( \frac{\^ p - p }{\sigma } < \frac{0.9207 - 0.96}{0.0130 } )$

$\frac{\^ p - p}{\sigma } = Z (The \ standardized \ value\ of \ \^ p )$

$P( p < 0.9207) = P(Z< -3.022 )$

From the z table the area under the normal curve to the left corresponding to -3.022 is

$P(Z< -3.022 ) = 0.0012556$

=> $P( p < 0.9207) = 0.0012556$

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3 years ago

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dusya [7]

0 1 2 3 4 5 6 7 8 9 10
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0 1 2 3 4 5 6 0 0 0 0

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Step-by-step explanation:

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2 years ago

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Pie

Answer:

1. Positive, 1+2=3

2. Negative, -1-2=-3

Step-by-step explanation:

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