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kvasek [131]
3 years ago
9

Which of the following is mostly likely the next step in the series ?

Mathematics
1 answer:
Vlad1618 [11]3 years ago
5 0

Answer:

c

Step-by-step explanation:

Step 1: calculate the number

everytime the number goes up by 5 so we can assume that it will be 25

step 2: find the letter

it just goes by the alphabet so we can assume it will be e.

the letter always follows the number and it alternates between uppercase and lower case and last time it was uppercase so it will be lowercase.

Therefore it will be 25e

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What is 5x5x3x5x3x2 simplified using exponents
8090 [49]

Answer: 5 to the 3rd times 3 to the second times 2

Step-by-step explanation:

8 0
3 years ago
The mean annual income for people in a certain city is 37 thousand dollars, with a standard deviation of 28 thousand dollars. A
Aloiza [94]

Answer:

P( 31 < \bar X< 41)

And we can ue the z score formula given by:

z= \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And using this formula we got for the limits:

z = \frac{31-37}{\frac{28}{\sqrt{50}}}= -1.515

z = \frac{41-37}{\frac{28}{\sqrt{50}}}= 1.01

So we want to find this probability:

P(-1.515

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the annual income of a population, and for this case we know the following info:

\mu=37 and \sigma=28  and we are omitting the zeros from the thousand to simplify calculations

We select a sample size of n=50>30.

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we want to find this probability:

P( 31 < \bar X< 41)

And we can ue the z score formula given by:

z= \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And using this formula we got for the limits:

z = \frac{31-37}{\frac{28}{\sqrt{50}}}= -1.515

z = \frac{41-37}{\frac{28}{\sqrt{50}}}= 1.01

So we want to find this probability:

P(-1.515

4 0
2 years ago
The sum of all integers between 3 and 11
Lena [83]

Answer:

49

Step-by-step explanation:

You would add 4+5+6+7+8+9+10 to get the sum of 49.

6 0
3 years ago
Read 2 more answers
Given h(x)=2x-1 and g(x)=x^2+5, find (h/g) (x)
kykrilka [37]

Answer:

jhkb vhgv bhbjglvhn

kcgjhvkgfgcjhvjlbh hbmnbvnj vgc

khgbvjihu

Step-by-step explanation:

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3 years ago
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HELP idk what to do just please give me the answer
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Just convert the kilometers
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