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GATE2020: 24
soujanyareddy13
asked
in
Probability and Statistics
Nov 3, 2020
recategorized
Mar 18, 2021
by
Lakshman Patel RJIT
0
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0
votes
A normal random variable has mean equal to $0$, and standard deviation equal to $3$. The probability that on a random draw the value of this random variable is greater than $0$ is __________ (round off to $2$ decimal places).
gate2020
numerical-answers
probability-and-statistics
probability
mean-and-standard-deviation
soujanyareddy13
asked
in
Probability and Statistics
Nov 3, 2020
recategorized
Mar 18, 2021
by
Lakshman Patel RJIT
by
soujanyareddy13
2.7k
points
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Answer:
0.49:0.51
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The probability distribution for a discrete random variable $X$ is given below. $\begin{array}{|c|c|c|c|c|} \hline X & 1 & 2 & 3 & 4 \\ \hline P(X) & 0.3 & 0.4 & 0.2 & 0.1 \\ \hline \end{array}$The expectation value of $X$ is (up to one decimal place) _____________
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The variable $z$ has a standard normal distribution. If $P(0 \leq z \leq 1)= 0.34$ then $P(z^2 > 1)$ is equal to (up to two decimal places) ____________
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Mar 25, 2018
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A disease is inherited by a child with a probability of $1/4$. In a family with two children, the probability that exactly one sibling is affected by this disease is $1/4$ $3/8$ $7/16$ $9/16$
Milicevic3306
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