Ted is not particularly creative. He uses the pickup line, "If I could rearrange the alphabet, I would put U and I together." The random variable x is the number of girls Ted approaches before encountering one who reacts positively.
XP(X)
1 0.01
2 0.2
3 0.4
4 0.3
What is the mean of the random vailable X?
What is the standard deviaition of the random variable X?
There is a typo in this question. P(X = 1) should be equal to 0.1 not 0.01. Because if that value is 0.01 then total sum of all probability is not going to be equal to one.
a) Mean = E(X) = 1 * 0.1 + 2 * 0.2 + 3 * 0.4 + 4 * 0.3 = 2.9
b) E(X2) = 12 * 0.1 + 22 * 0.2 + 32 * 0.4 + 42 * 0.3 = 9.3
Var(X) = E(X2) - (E(X))2 = 9.3 - 2.92 = 0.89
Stnadard deviation = sqrt(0.89) = 0.9438
Ted is not particularly creative. He uses the pickup line, "If I could rearrange the alphabet,...
Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and I together." The random variable x is the number of girls Ted approaches before encountering one who reacts positively. Determine whether the table describes a probability distribution. If it does, find its mean and standard deviation. x P(x) 1 0.0020.002 2 0.0380.038 3 0.1330.133 4 0.2580.258 5 0.3020.302
Ted is not particularly creative. He uses the pickup
line "If I could rearrange the alphabet, I'd put U and I together."
The random variable x is the number of girls Ted approaches before
encountering one who reacts positively. Determine whether the table
describes probability distribution. If it does, find its mean and
standard deviation.
0 3trlard deviation. d the mean u of the random variable x. Select the correct choice below and, if necessary, il in the answer box...
5. Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and Itogether." The random variable x is the number of girls Ted approaches before encountering one who reacts positively. Determine whether the table describes a probability distribution. If it does, find its mean and standard deviation. x P(x) 1 0.002 2 0.018 3 0.122 4 0.203 5 0.277 Find the mean μ of the random variable x. Select the correct...
Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and I together." The random variable x is the number of girls Ted approaches before encountering one who reacts positively. Determine whether the table describes a probability distribution. If it does, find its mean and standard deviation. x P(x) 1 0.001 2 0.028 3 0.136 4 0.249 5 0.407 Find the mean mu of the random variable x. Select the correct...
17 Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and I together. The random variable x is the number of women Ted approaches before encountering one who reacts positively. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. X 0 1 2 – 3 P...
Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and I together." The random variable x is the number of women Ted approaches before encountering one who reacts positively. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. x P(x) 0 0.001 1 0.008 2 0.029...
Ted is not particularly creative. He uses the pickup line "If I could rearrange the alphabet, I'd put U and I together." The random variable x is the number of women Ted approaches before encountering one who reacts positively. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. x P(x) 0 0.001 1 0.007 2 0.033...
Ted s no particularly creati e He uses the pickup line "If could rear ange the alphabet, rd put U and together. The random va able positively. Determine whether the table describes a probability distibution If it does, find its mean and standard deviation. s the number of girls Ted approaches before encountering one who reacts 10.002 4 0.296 5 0.404 Find the mean μ of the random variable x. Select the correct choice below and, if necessary, fill in...
Quiz: Week 2 Quiz Submit Quiz "The This Quiz: 50 pts possible ALL MATS This Question: 5 pts Quest the alphabet, I'd put U and I Ted is not particularly creative He uses the pickup line "If I could rearrange together" The random variable x is the number of girts Ted approaches before encountering : The whether the table describes a probability distribution If it does, find its mean and 2 0.027 3 0.118 4 0.272 5 0234 standard deviation...
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