Mathematics, 24.08.2021 20:00 lilpump3506
A set of ten cards consists of five red cards and five black cards. The cards are shuffled thoroughly. Four of these cards will be selected at random without replacement . Let X = the number of red card in the set of Four selected cards. Which of the following probability distributions is appropriate for the random variable X?
A. A continuous distribution with mean 3 and variance 1.22.
B. A binomial distribution with parameters n = 4 and p = 0.5.
C. A binomial distribution with parameters n = 10 and p = 0.5.
D. The binomial distribution is inappropriate because the results of trials are not independent.
Answers: 2
Mathematics, 21.06.2019 13:00, Christinelove23
Acompany is making new soccer uniforms for a team. the company uses 2.5 yards of fabric for each shirt. the company uses 82.5 yards of fabric to make shirts and shorts for 15 players. the equation and solution below represents the situation. 15(2.5+x)=82.5; x=3 what does the solution, x=3, represent?
Answers: 1
Mathematics, 21.06.2019 15:20, jake9919
The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)
Answers: 1
Mathematics, 21.06.2019 16:30, mildredelizam
Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?
Answers: 3
Mathematics, 22.06.2019 02:10, genyjoannerubiera
The key on a road map has a scale factor of 1.5 inches = 50 miles. the distance between santa fe and albuquerque measures 7.5 inches. the distance between santa fe and taos is 0.75 inches. what is the actual distance between the cities?
Answers: 3
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