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nataly862011 [7]
2 years ago
13

Carrie sent 190 total text messages in the first

Mathematics
1 answer:
ratelena [41]2 years ago
8 0
190 / 5 = 38
38 * 31 = 1178
1178 * 4 = 4712
= $47.12
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Whoever answers first can get brainliest!
Andrew [12]

Answer:

d

Step-by-step explanation:

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3 years ago
Suppose each of the following data sets is a simple random sample from some population. For each dataset, make a normal QQ plot.
adell [148]

Answer:

a) For this case the histogram is not too skewed and we can say that is approximately symmetrical so then we can conclude that this dataset is similar to a normal distribution

b) For this case the data is skewed to the left and we can't assume that we have the normality assumption.

c) This last case the histogram is not symmetrical and the data seems to be skewed.

Step-by-step explanation:

For this case we have the following data:

(a)data = c(7,13.2,8.1,8.2,6,9.5,9.4,8.7,9.8,10.9,8.4,7.4,8.4,10,9.7,8.6,12.4,10.7,11,9.4)

We can use the following R code to get the histogram

> x1<-c(7,13.2,8.1,8.2,6,9.5,9.4,8.7,9.8,10.9,8.4,7.4,8.4,10,9.7,8.6,12.4,10.7,11,9.4)

> hist(x1,main="Histogram a)")

The result is on the first figure attached.

For this case the histogram is not too skewed and we can say that is approximately symmetrical so then we can conclude that this dataset is similar to a normal distribution

(b)data = c(2.5,1.8,2.6,-1.9,1.6,2.6,1.4,0.9,1.2,2.3,-1.5,1.5,2.5,2.9,-0.1)

> x2<- c(2.5,1.8,2.6,-1.9,1.6,2.6,1.4,0.9,1.2,2.3,-1.5,1.5,2.5,2.9,-0.1)

> hist(x2,main="Histogram b)")

The result is on the first figure attached.

For this case the data is skewed to the left and we can't assume that we have the normality assumption.

(c)data = c(3.3,1.7,3.3,3.3,2.4,0.5,1.1,1.7,12,14.4,12.8,11.2,10.9,11.7,11.7,11.6)

> x3<-c(3.3,1.7,3.3,3.3,2.4,0.5,1.1,1.7,12,14.4,12.8,11.2,10.9,11.7,11.7,11.6)

> hist(x3,main="Histogram c)")

The result is on the first figure attached.

This last case the histogram is not symmetrical and the data seems to be skewed.

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3 years ago
Gianni was thinking about paying his mother back in less than 100 weeks if he pays his mother $20 a week how many week will it t
weeeeeb [17]
What is the total amount of money he owes back?
6 0
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Read 2 more answers
1/3 of ___ is 1/27<br> please help asap
tekilochka [14]

Answer:

1/9 use inverse.

Step-by-step explanation:

this is because you can use inversem since the word "of" indicates multiplication divide 1/27 and 1/3 and you get 1/3

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2 years ago
What is the y intercept of a line that has a slope of -3 and passes through point 0.-7?​
sesenic [268]

Answer:

-7

Step-by-step explanation:

(x,y) --> (0,-7) -7 is the y-intercept

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