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3 years ago

HELP MEEEEEE!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

SashulF [63]3 years ago

3 0

Answer:

B. ) -2

Step-by-step explanation:

-15 ( x - 2 ) = 25

-15X + 30 = 25

-15X = 25 - 30 15 × 2 = 30

-15X = -5

X = -5 / -15

X = 1 / 3

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3 years ago

A particular type of mouse's weights are normally distributed, with a mean of 359 grams and a standard deviation of 33 grams. If

igor_vitrenko [27]

Answer:

Following are the responses to the given points:

Step-by-step explanation:

Given:

$\mu = 359 \ \ \ \ \ \sigma = 33\\\\$

Using formula:

$\to P(X = x) = P\left ( z < \frac{x-\mu }{\sigma } \right )$

For point a:

$\to x= 406\\\\P(X < 406 ) = P\left ( z < \frac{406-359 }{33 } \right )\\\\$

$= P\left ( z$

For point b:

$\to x= 461\\\\P(X > 461 ) = P\left ( z > \frac{461 -359 }{33 } \right )\\\\$

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For point c:

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For point d:

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Hence, the correct choice is "i".

For point e:

$\to P(X > z) = 0.1\\\\\to 1 - P(X < z) = 0.1\\\\\to P(\frac{x-\mu }{\sigma }) = 0.9\\\\\to \frac{x-359}{33 } = 1.28\\\\ \to x = 401.24\\\\$

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3 years ago