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kykrilka [37]
3 years ago
7

Kelly telephoned brook about a homework problem. Kelly said, “Four plus three times two is 14, isn’t it?” Brook replied, “No, it

’s 10.” Did someone make a mistake? Can you explain where these two answers came from?
Mathematics
2 answers:
Nuetrik [128]3 years ago
8 0
Kelly made a mistake by not following PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. She added 4 and 3 before multiplying it by two when the multiplication comes before the addition or subtraction. Brook is correct.
allochka39001 [22]3 years ago
7 0

Answer:


Step-by-step explanation:

Keely should follow the BODMAS rule

then she will get the correct answer 10


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8 0
2 years ago
heights of statistics students were obtained by a teacher as part of an experiment conducted for the class. The last digit of th
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Answer:

1) B. The height appear to be reported because there are disproportionately more 0s and 5s.

2) A. They are likely not very accurate because they appear to be reported.

Step-by-step explanation:

The distribution table is shown below:

Last Digit           Frequency

     0                          9

     1                           1

     2                          1

     3                          3

     4                          1

     5                         11

     6                          1

     7                          0

     8                          3

     9                          1

1. Based on the distribution table, we see a very disproportionate distribution. There is a high frequency of 0's and 5's. This lays credence to the heights being reported rather than measured. As such, option B is the correct answer

<u>B. The height appear to be reported because there are disproportionately more 0s and 5s</u>.

2. Since the heights were reported and not measured, they are most certainly not accurate. The conclusion is that the result is not accurate. As such, option A is the correct answer

<u>A. They are likely not very accurate because they appear to be reported</u>.

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<em>1 1/4 </em>

<em></em>

Pick either one... 1.25 is more likely to be correct

<em></em>

<em></em>

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