3 years ago

What is the first and second, both have the same answers

Mathematics

1 answer:

padilas [110]3 years ago

4 0

Answer:

Step-by-step explanation:

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Answer:

It is the first answer option.

Step-by-step explanation:

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3 years ago

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Answer:

Step-by-step explanation:

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2 years ago

What is the polynomial of (-3,0)(2,0)(2,0)(3,0)

olga2289 [7]

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2 years ago

A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal c

Lina20 [59]

Answer: 97.72%

Step-by-step explanation:

Given : A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal curve.

Let x be the random variable that represents the shoe sizees.

Also, The population mean = $\mu=11$ ; Standard deviation: $\sigma=1.5$

Formula for z:-

$z=\dfrac{x-\mu}{\sigma}$

Put x= 8, we get

$z=\dfrac{8-11}{1.5}=-2$

Now, the probability that the male shoe sizes are greater than 8 :-

$P(x>8)=P(z>-2)=1-P(z\leq-2)\\\\=1-0.0227501=0.9772499\approx0.9772$

Hence, the percent of male shoe sizes are greater than 8 is 97.72%.

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3 years ago

A bag has 6 red marbles, 8 blue marbles and 4 yellow marbles. What is the probability of picking a red marble, replacing it, and

ValentinkaMS [17]

Answer:

4/27

Step-by-step explanation:

6 red marbles, 8 blue marbles and 4 yellow marbles.= 18 total marbles

P(red marble) = number red marbles / total

=6/18 = 1/3

We put the marble back

6 red marbles, 8 blue marbles and 4 yellow marbles.= 18 total marbles

P(blue marble) = number blue marbles / total

=8/18 = 4/9

P(red, replace. blue) = P(red) * P (blue)

= 1/3 * 4/9 = 4/27

7 0

3 years ago

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