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3 years ago

WILL GIVE BRAINLIEST

Mathematics

2 answers:

Andre45 [30]3 years ago

6 0

Probability formula P(wanted)=wanted/total

using this we can see P(red)=62/100

then reduce the fraction we get

31/50

Please give brainlliest thanks!

g100num [7]3 years ago

4 0

Answer:

31/50

Step-by-step explanation:

I got it right:)

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2 years ago

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2 years ago

The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation

Nutka1998 [239]

Answer:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

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And using the normal standar table or excel we got:

$P(z$

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.917,0.303)$

Where $\mu=0.917$ and $\sigma=0.303$

We have the following info from a sample of n =37:

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And we want to find the following probability:

$P(\bar X \leq 0.872)$

And we can use the z score formula given by;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

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3 years ago

What is the GCF and LCM of -21 and 80? Please Help! Explanation Please! :) Will give brainliest! ASAP!

Lisa [10]

Answer:

GCF= 1

LCM= 1680

Step-by-step explanation:

GCF= Find the prime factorization of 21, 21 = 3 x 7

Find the prime factorization of 80, 80 = 2 x 2 x 2 x 2 x 5

Then multiply the prime factors both numbers have in common

LCM= multiply the two numbers together and ignore all negative signs

5 0

2 years ago