Identify the following as a discrete random variable, continuous random variable, or not a random variable. a) The braking time of a car b) The color of eyes c) Shoe sizes of humans

A. Classify each random variable as discrete or continuous. 1. X: Number of women among 20 newly hired teachers 2. Y: Height (in centimeters) of a 30 randomly selected adult males 3. Z: Number of car accidents among 8 selected cities 4. A: Amount of rainfall (in millimeters) in different cities in Metro Manila 5. B: Number of gifts received by 20 students during Christmas season

Let X be a chi-squared random variable with 35 degrees of freedom. What is the probability that X is less than 30?  a).757 b).708 c).243 d).292 e)none of the above

A space agency compiles data on​ space-shuttle launches and publishes them on its website. The following table displays a frequency distribution for the number of crew members on each shuttle mission over a​ 30-year period. Let X denote the crew size on a randomly selected shuttle from this time period. Complete parts​ (a) through​ (e) below.   Crew size 2 4 5 6 7 8     Frequency 4 5 40 20 72 1       a. What are the possible values of the random variable X​?   ​(Use a comma to separate answers as​ needed.)   b. Use​ random-variable notation to represent the event that the shuttle mission obtained has a crew size of 7. Select the correct choice below and fill in the answer box within your choice.   A.( P) B. c. Find ​P(X=4​); interpret in terms of percentages.   ​P(X=4​)= ​(Round to three decimal places as​ needed.) Interpret in terms of percentages. Select the correct choice below and fill in the answer box to complete…

)  Classify the following random variable according to whether it is discrete or continuous.  The number of cups of coffee sold in a cafeteria during lunch A. continuous B. Discrete

Is the following random variable discrete or continuous? Let X represent the number of books in a random professor's office.

Pavan

Let x be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let y be a random variable that represents the percentage of successful field goals a professional basketball player makes in a season. A random sample of n = 6 professional basketball players gave the following information. x 73 84 88 63 76 85 y 46 45 55 41 51 53 Given that 3.755, a*13.677, b*0.445, x 78.167, Ex=469, y = 291, Ex² = 37,099, and y² = 14,257, find a 90% confidence interval for y when x=79. tc = 2.132 O between 40.9 and 56.9 O between 40.2 and 57.5 O between 40.1 and 57.6 O between 39.9 and 57.8 O between 40.4 and 57.4

Identify the given random variable as being discrete or continuous. The height of a randomly selected student ODiscrete O Continuous