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Sav [38]
3 years ago
12

Please help me ASAP.

Mathematics
1 answer:
Sladkaya [172]3 years ago
8 0
Sending help your way :)
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the jenkins familys monthly budget is shown in the circle graph the family has a monthly income of 4800 how much money do they s
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There is no graph brother, please provide a graph and i can help you
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I need help with this:<br><br> What makes this equation true?<br><br> 754 - blank = 148
VladimirAG [237]
754-148= 606, therefore, 754- (?) = 148
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Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 47.3 m
Marta_Voda [28]

Answer:

\bar X = \frac{2276}{48}=47.417

If we compare this value with the 47.3 proposed we have the following error

Error = \frac{|Actual-real|}{real}*100 = \frac{|47.417-47.3|}{47.3}*100 =0.247\%

The computed mean is close to the actual mean because the difference between the means is less than 5%.  

Step-by-step explanation:

Assuming the following dataset:

Speed   42-45  46-49  50-53  54-57  58-61

Freq.         21        15        6           4          2

And we are interested in find the mean, since we have grouped data the formula for the mean is given by:

\bar X = \frac{\sum_{i=1}^n x_i f_i}{\sum_{i=1}^n f_i}

And is useful construct a table like this one:

Speed     Freq    Midpoint   Freq*Midpoint

42-45       21            43.5       913.5

46-49       15            47.5        712.5

50-53       6             51.5         309

54-57        4            55.5         222

58-61        2             59.5        119

Total       48                           2276

And the mean is given by:

\bar X = \frac{2276}{48}=47.417

If we compare this value with the 47.3 proposed we have the following error

Error = \frac{|Actual-real|}{real}*100 = \frac{|47.417-47.3|}{47.3}*100 =0.247\%

The computed mean is close to the actual mean because the difference between the means is less than 5%.  

6 0
3 years ago
Factor the trinomial: x^2-x-12 x 2 − x − 12
aliya0001 [1]
----------------------------

7 0
3 years ago
Read 2 more answers
The answer to number 1
Gnoma [55]

Answer:b

Step-by-step explanation:

8 0
3 years ago
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