The time spent by a teacher at work during spring holidays is normally distributed with a mean of 20 hours and a standard deviation of 5 hours. What amount of time do the top 25-percent teachers spend at work? O A: 23.4 B: 25.2 C. 26.4 OD: 22.6 OE: 24.2

Q: D pls

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A: Explanation of the answer is as follows

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A: We have to find the LCM of 77 and 18.

Q: 12 R 10 5

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A: Total female = 133+43 = 178 Total "did not graduate" = 55+43 = 98 Grand total= (126+55+133+43)  =…

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A: Given, 33 x 273

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A: 2×100=200

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A: Please see the below picture for detailed solution.

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A: Cycle is defined as a path that start and end at the same vertex.

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A: We know that If a perpendicular is drawn from the vertex of right angle triangle of a right triangle…

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A: We have to multiply 10×10 When we multiply 10 into 10, we will get 100. Therefore, 10×10=100

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A: The scatter plot drawn using the data is displayed below.     Thus, the correct option is,…

Q: 8 13

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