D. 1+6 7. A random variable X that assumes values in the interval [0; 1) has density function f(x) = a +0.6 x, where a is constant A. 0.6 B. 0.8 C. 1.0 D. 0.7
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- 3. The joint probability density function for the random variables Y, and Y, is given by (6(1- y,), 0Moulinex is a well-known brand on the market that produces blenders. The time needed to produce one blender is expressed in minutes and can be modelled as a continuous random variable X with density function f(x) = {a ·⋅ (x − 53) · (57 − x)³ 0 if 53 ≤ x ≤ 57, otherwise You may assume that the production times for producing different blenders are independent of each other. C. a. Show that a = 1 / 51.2. b. Determine the median production time and the mode of the production time of the blenders of the brand Moulinex. Determine the probability that the total production time needed to produce 50 blenders exceeds 45 hours. d. What is the maximum number of blenders that can be produced with a total production time of at most 40 hours with a probability of at least 95%?please teach this I do not no notationsX is a continuous random variable and its density function is 0 ≤ x ≤ 1, f₂(x) = {} x ‡ {0 ≤ x ≤ 1}. What is k ? O a. 1 O b. 1.5 O c. 2 O d. 3 e. 4 kx1. Let X be a continuous random variable with the following density function: cx,0Let X be the proportion of new restaurants in a given year that make a profit during their first year of operation, and suppose that the density function for X is ƒ(x) = 20x³(1 − x) Find the expected value and variance for this random variable. E(X) = = Var(X) 0 ≤ x ≤ 1Recommended textbooks for youA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSONA First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON