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vekshin1
3 years ago
15

Help please thank you

Mathematics
1 answer:
lianna [129]3 years ago
3 0
Number one and three is the answer
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The following scores represent the final examination grades for an elementary statistics course: 23 60 79 32 57 74 52 70 82 36 80
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Answer:

a)  The decimal point is 1 digit(s) to the right of the |

  0 | 6

 1 | 0

 2 | 35

 3 | 26

 4 | 1

 5 | 2257

 6 | 045

 7 | 0456789

 8 | 001125

 9 | 258

b) The relative frequency histogram as attached diagram.

As shown, the plot is skewed to the left.

c)

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ii) median = 72

iii) Standard deviation = 24.87923

Step-by-step explanation:

a) The first approach is to sort the data in ascending or descending order. Next, we Identify the minimum grade and the maximum grade. We then list the stems based on the minimum and maximum. And we construct the stem and leaf diagram as show. The first digit represents the stem and the last digit represents the leaf.  

As shown, all the grade are two digits value, with minimum as 06 and maximum as 98. In this case, the first stem is 0 and the last stem is 9.

Others (b & c) are just the usual calculations.

6 0
3 years ago
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