3 years ago

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Mathematics

1 answer:

siniylev [52]3 years ago

8 0

Answer:

it's the second one..............

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In a book the characters are trying to determine whether the Poisson probabilistic model can be used to describe the locations t

oksian1 [2.3K]

Answer:

The estimated mean number of rockets hits in the region is 533.

Step-by-step explanation:

We are given the following information,

Number of rocket hits | Observed number of regions

0 | 228

1 | 214

2 | 94

3 | 32

4 | 7

5 | 0

6 | 0

7 | 1

We are asked to estimate the mean number of rocket hits in the region.

The mean or expected value is given by

$\mu = \sum (x \cdot P(x)) \\\\\mu = (0 \cdot 228) + (1 \cdot 214) + (2 \cdot 94) + (3 \cdot 32) + (4 \cdot 7) + (5 \cdot 0) + (6 \cdot 0) + (7 \cdot 1) \\\\\mu = 0 + 214 +188+ 96 +28 +0+ 0 + 7 \\\\\mu = 533$

Therefore, the mean number of rockets hits in the region is 533.

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3 years ago

What are decimals?<br> ??????????????????

lora16 [44]

Answer:

The decimal numeral system is the standard system for denoting integer and non-integer numbers.

Step-by-step explanation:

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3 years ago

What percentage is equal to 2/5?

nikdorinn [45]

40%

Because, 2/5 equals 4/10. 10x10=100, so 4x10=40, so 40%.

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3 years ago

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The quotient of 2 numbers, p and q.

BabaBlast [244]

Answer:

p/q = x

Step-by-step explanation:

3 0

2 years ago

Jade had $100 yesterday. Today she earns d dollars for babysitting. She now has $148. Write an equation to match how much money

ELEN [110]

100 + 48=148 so that means she got 48 dollars for babysitting

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3 years ago

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