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Dahasolnce [82]
3 years ago
14

Ben os travelling home to brimingham on the m1 and m42. both motorways have road works. He has a 50-50 chance of getting delay o

n the m42 and a 75% chance of being delayed on the M1.
what are the chances that he will not be delayed on his journey.
Mathematics
1 answer:
Contact [7]3 years ago
8 0
The answer is 1/8 or 12.5%
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According to the National Education Association (NEA), teachers generally spend more than 40 hours each week working on instruct
abruzzese [7]

Answer:

The median number of hours worked per week for the sample of 13 high school science teachers is 52.

Step-by-step explanation:

Median of a data set:

The median of a data set is the element that separates the lower 50% of the set from the upper 50%.

If the cardinality n of the set is odd, the median is the element at the position (n+1)/2 of the sorted sed.

If the cardinality n of the set is even, the median is the mean between the elements at the position n/2 and (n/2)+1 of the sorted sed.

In this question:

Hours worked for the sample of 13 high school science teachers:

55, 58, 52, 52, 56, 59, 48, 63, 52, 52, 50, 52, 56

Sorting in an ascending way:

48, 50, 52, 52, 52, 52, 52, 55, 56, 56, 58, 59, 63

Cardinality of 13, so odd, the median is the element at the 13+1/2 = 7th position of the sorted set, which is 52.

The median number of hours worked per week for the sample of 13 high school science teachers is 52.

8 0
3 years ago
If y varies directly as x, and y = 42 as x = 6, find y for the x-value 3
mojhsa [17]
Y=42  Y=?
X=6    X=3

cross multiply
so 42times3=6timesY
126=6Y
Y=126 divided by 6
  =21
3 0
3 years ago
7/22 rounded to the nearest thousand
saw5 [17]

Answer:

0.318

Step-by-step explanation:

5 0
2 years ago
Two numbers that have a difference of 8.
BlackZzzverrR [31]

Answer:

16/2 = 8

24/3 = 8

7 0
3 years ago
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