Total number of male employees who are married = 120 Total number of male employees (married + unmarried) = (120/30) × 100 = 400 Number of male employees who are unmarried = 400 − 120 = 280 Total number of female employees = 840 − 400 = 440 Total number of female employees who are unmarried = 280 − 180 = 100 Number of female employees who are married = 440 − 100 = 340 Required number of female employees in 2018 who are married = 340 + 100 × (20/100) = 360
The fair dice is rolled 15 times and face value are noted
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If a discrete random variable X follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20, the value of P(|X-14| < 5) will be:
If mean and median of the distribution are 12 and 21, then the distribution
For a distribution, the mean is 10, variance is 16, Y1 is +1 and β2 is 4. The distribution is:
The average working hours per month of the staff aged over 50 years in a factory were 160 and that of the staff aged under 50 years were 210. The mean ...
Which option is WRONG?
If the occurrence of events follows Poisson Process with mean rate λ, then inter-occurrence time of events will follow:
The value of k so that following is probability mass function
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Two random variables X and Y are said to be independent if:
