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Mathematics 7 Online
OpenStudy (anonymous):

Which number line correctly shows 3.2, 3 2/5, 31/10?

OpenStudy (anonymous):

OpenStudy (anonymous):

please help @tinncan02 @djalex714 @bcimkenz @CookieFerret

OpenStudy (anonymous):

Idk, sorry. ): Can you please help me on my latest question please?

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

@mooniepie

OpenStudy (anonymous):

b maybe sorry so late i was not paying attention

OpenStudy (anonymous):

its ok thx, can you help with more?

OpenStudy (anonymous):

sure

OpenStudy (anonymous):

one min

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Does the graph distort the data and give a false impression about the profits? A. The increase in profits looks larger than the data indicates. B. The increase in profits looks smaller than the data indicates. C. The increase in the profits looks the same as the data indicates.

OpenStudy (anonymous):

this is all a review for a semester test im going to take tomorrow!

OpenStudy (anonymous):

i'll help with both question if u want

OpenStudy (anonymous):

ok i think b

OpenStudy (anonymous):

i have more then two.. there is 39 in all i am going to do the ones i need help with, it is a practice semester test.

OpenStudy (anonymous):

The answer is C for the first question about the graphs

OpenStudy (anonymous):

u mean number lines?

OpenStudy (anonymous):

yep

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

btw on the practice tests I just christmas tree and on the real test i get an average of 95% all the time

OpenStudy (anonymous):

the practice tests aren't worth a grade

OpenStudy (anonymous):

for the second question where is the data their talking about

OpenStudy (anonymous):

ok,but i always have to study and practice, my mom and dad don't want me failing it, because i only get one attempt

OpenStudy (anonymous):

and it's attached

OpenStudy (anonymous):

@abswag13

OpenStudy (anonymous):

The histogram shows the number of books read by people participating in a local book club. Which statement is best supported by this histogram? A. Six people read more than 2 books. B. Six people read between 6 and 8 books. C. Three people read no books. D. Most people read 3 to 5 books.

OpenStudy (anonymous):

this one is a different question

OpenStudy (anonymous):

c and gtg sorry

OpenStudy (anonymous):

ok thanks

OpenStudy (anonymous):

how is it C?

OpenStudy (anonymous):

The answer is A

OpenStudy (anonymous):

the reason why is if you count how many people participated it was 9

OpenStudy (anonymous):

now u see that 3 people read between 0 - 2 books

OpenStudy (anonymous):

and now there are 2 people that read between 3-5 and 4 people read between 6-8. so that means there are a total of 6 people who read over 2 books

OpenStudy (anonymous):

thx

OpenStudy (anonymous):

@abswag13

OpenStudy (anonymous):

How will adding the value 1000 affect the mean and median of the data set 5, 10, 17, 19, 20? A. The median increases and the mean stays the same. B. The mean increases and the median stays the same. C. The mean and the median increase by the same amount. D. The mean increases more than the median increases.

OpenStudy (anonymous):

@abswag13

OpenStudy (anonymous):

@ethanjosiah2015

OpenStudy (anonymous):

@DJBreezy

OpenStudy (anonymous):

help

OpenStudy (djbreezy):

The answer is D {5, 10, 17, 19, 20} mean = 14.2 median = 17 now compute the mean and median for {5, 10, 17, 19, 20, 1000}......mean=178.5......Making B ur answer

OpenStudy (djbreezy):

D*

OpenStudy (anonymous):

thank you!

OpenStudy (anonymous):

Here are 10 test scores: 73, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these scores is 78.3. Does this set have an outlier and, if so, how does removing it affect the mean? A. The set has 73 as an outlier and removing it decreases the mean by about 0.5. B. The set has 73 as an outlier and removing it decreases the mean by about 10. C. The set has 73 as an outlier and removing it increases the mean by about 0.5. D. This data set has no outliers.

OpenStudy (anonymous):

@DJBreezy

OpenStudy (djbreezy):

The answer is D because an outlier is a value that does not fit with the set of values, so 30 (or something like that) would be an outlier it's asking for an outlier to the set of values. notice how all the numbers in the set of values are in the 70's or 80's......Making D ur answer

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