2 years ago

Mr Harrison is 9 months old. How old is Mr Harrison daughter in days

Mathematics

1 answer:

Reil [10]2 years ago

3 0

Answer:

273.75 days

Step-by-step explanation:

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Hey can you help me fast I need to get this grade to a 90 by 12:00 I have an 83 rn.

Nesterboy [21]

Answer:

30/50

Step-by-step explanation:

because there is a y distance of 30 and x distance of 50 from point to point.

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3 years ago

In a computer program, distance due south from a point is treated as negative, and distance due north from a point is treated as

aleksandrvk [35]

The correct answer is -78.15 m.

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4 years ago

The number of books borrowed from a library each week follows a normal distribution. When a sample is taken for several weeks, t

Marat540 [252]

$\mathbb P(X>250)=\mathbb P\left(\dfrac{X-190}{30}>\dfrac{250-190}{30}\right)=\mathbb P(Z>2)\approx0.0228$

Or, if you're familiar with the empirical rule and the basic properties of the normal distribution, you can use the fact that approximately $95/%$ of the distribution lies within two standard deviations of the mean, or

$\mathbb P(|Z|$

which means about $5\%$ of the distribution lies outside this interval, or

$\mathbb P((-22))\approx0.05$

Because the distribution is symmetric, you have

$\mathbb P(-22)$
$\implies \mathbb P((-22))=\mathbb P(-22)=2\mathbb P(Z>2)\approx0.05$
$\implies \mathbb P(Z>2)\approx 0.025$