Two cards are drawn simultaneously or successively without replacement from a well-shuffled deck of 52 cards. Find the probability distribution of number of aces (x). Give a graphical representation of probability distribution.
Two cards are drawn from a well-shuffled deck of 52 cards without replacement. Let (X) denote the number of aces drawn. Total number of possible outcomes [ {}^{52}C_2 = _________ _____ ____ __________ ______ ____ ________ _________.
_________ _________ _____ _______ ________.
__________ ___ ____ __________ ______ ______ _________ _________ ___ _______ _____.
___ _____ ____ _____ ________ _____ ________ _______ ______ _____.
________ ________ ___ ________ _____ _____ ______.
___ _______ ____ ______ ________ _________ ___ __________.
_________ ________ _______ ___ ________ ______.
_________ ______ _____ ______ ________ _____ ___ ___.
____ _____ _______ ___ _________ ___ ___ _______ ________ ____ _______ __________.
___ _______ _____ ______ __________ _____ ________ _________ _____ ________ _________ _______.
__________ ___ ___ _____ ______ _________ _________ __________ __________ ______ _________.
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Two samples of 9 and 8 sizes give the sum of squares of deviations from respective means equal to 160 and 91 inches squares. Test whether these samples have been drawn from same normal population or not? (Use )
Which of the following statements are true? Give reasons for your answer.
(i) F-distribution is always used in goodness of fit.
(ii) Measure of central tendency in a data set refers to the extent to which the observations are scattered.
(iii) A process is said to be under assignable cause when the points are above the VCL link of () chart.
(iv) Simple random sampling is done by using random number tables where the probability of drawing a digit is 0⋅ 1.
(v) All time series have a trend.
Consider a population of 11 schools from which a sample of size 3 is to be selected. List all the possible samples by circular systematic sampling.
Consider the case of tossing two dices. Let
A : be the event of getting an odd total
B : the event of getting on the first dice, and
एक साइकिल की दुकान 1990 से 2000 तक निम्नलिखित संख्या में साइकिलें बेचती है।
| वर्ष | बेची गई साइकिलों की संख्या (हजारों में) |
| 1990 | 3 |
| 1991 | 3 |
| 1992 | 3 |
| 1993 | 3 |
| 1994 | 6 |
| 1995 | 6 |
| 1996 | 6 |
| 1997 | 6 |
| 1998 | 9 |
| 1999 | 10 |
| 2000 | 12 |
निम्नलिखित सारणी 50 विद्यार्थियों द्वारा किसी सप्ताह में खेल के मैदान में व्यतीत किए गए घण्टों को दर्शाती है :
| घण्टे | 0 | 2 | 4 | 6 | 8 | 10 |
| विद्यार्थियों की संख्या | 10 | 6 | 8 | 6 | 10 | 10 |
: the event of getting a total of seven on two dices.
Then