A city metro train on the black line runs every 6 minutes during the time between 10 am and 12 pm. Let X be the waiting time of a randomly selected passenger between 10 am and 12 pm. 1. Describe the distribution of X: X-B v (a=| 2 ,b= 6 2. Use the random variable notation to express symbolically each of the following: P(X<1)=0.17 ♥| The probability of an event in which the waiting time of a randomly selected passenger is less than 1 is equal to 0.17. X<3 v An event in which the waiting time of a randomly selected passenger is less than 3. P(X<1) v The probability of an event in which the waiting time of a randomly selected passenger is less than 1. 3. Use the above probability density curve to find the probability that it takes: i. less than 3 minutes to wait for the train? (round the answer to 2 decimal places) ii. more than 1 minutes to wait for the train? (round the answer to 2 decimal places) iii. between 2 and 3 minutes to wait for the train? (round the answer to 2 decimal places)

For part a) can you do "Invertibility of B" & "Invertibility of C" and for part b) can you do "For B" & "For C"

I did the same thing. But, the question asks for all that apply which I couldn't figure out.

It is week 1 and there are currently 84 Apple Watches Series 6 in stock. We need 431 Apple Watches at the start of week 6. Apple Watch has a lead time of 2 week, in which week should an order be placed to meet the requirement of Apple Watches? Input should be an exact number le 5 or 10)

4. Part 1: How many phone numbers can be made if all the digits (that is, 10 digits) need to be filled in and any single digit number (0-9) can be used for any digit? Part 2: How many phone numbers can be made if the first digit must be 1, the second digit must be a number in the range 3-5, the third digit must be a number in the range (6-9), and the last seven digits can be any single digit number 0-9?

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