Asked by NUT
1. If the bearing of k from j is 165°, what is the bearing of j from k
2. Two dice are thrown together once. What is the probability of getting a product equal to 12?
3. The mean of the following set of marks:65,62,61,61,60,60,59,58,52 is 60. Calculate the variance?
2. Two dice are thrown together once. What is the probability of getting a product equal to 12?
3. The mean of the following set of marks:65,62,61,61,60,60,59,58,52 is 60. Calculate the variance?
Answers
Answered by
oobleck
#1 Just add or subtract 180°
#2 There are 36 possible throws. How many pairs of numbers are factors of 12? Remember that 3-4 and 4-3 are separate throws.
#3 Just plug your numbers into the formula. They have already said that x̅ = 60. So, use that in the formula:
∑(x<sub><sub>i</sub></sub>-x̅)<sup><sup>2</sup></sup> / (n-1)
#2 There are 36 possible throws. How many pairs of numbers are factors of 12? Remember that 3-4 and 4-3 are separate throws.
#3 Just plug your numbers into the formula. They have already said that x̅ = 60. So, use that in the formula:
∑(x<sub><sub>i</sub></sub>-x̅)<sup><sup>2</sup></sup> / (n-1)
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.