Chapter 15 – Probability
Apoorv throws two dice once and computes the product of the numbers appearing on the dice. Peehu throws one die and squares the number that appears on it. Who has the better chance of getting the number 36? Why?
26
Nov
Apoorv throws two dice once and computes the product of the numbers appearing on the dice. Peehu throws one die and squares the number that appears on it. Who has the better chance of getting the number 36? Why? The probability of getting a bad egg in a lot of 400 is 0.035. The number [...]
A game consists of spinning an arrow which comes to rest pointing at one of the regions (1, 2 or 3) (see figure). Are the outcomes 1, 2 and 3 equally likely to occur? Give reasons
26
Nov
A game consists of spinning an arrow which comes to rest pointing at one of the regions (1, 2 or 3) (see figure). Are the outcomes 1, 2 and 3 equally likely to occur? Give reasons 2 and 3 equally likely to occur? Give reasons 2 or 3) (see figure). Are the outcomes 1 A [...]
In a family having three children, there may be no girl, one girl, two girls or three girls. So, the probability of each is 1/4 . Is this correct? Justify your answer.
26
Nov
In a family having three children, there may be no girl, one girl, two girls or three girls. So, the probability of each is 1/4 . Is this correct? Justify your answer. In a family having three children one girl the probability of each is 1/4 . Is this correct? Justify your answer. there may [...]
Will the median class and modal class of grouped data always be different? Justify your answer.
26
Nov
Will the median class and modal class of grouped data always be different? Justify your answer. Will the median class and modal class of grouped data always be different? Justify your answer. November 26, 2020 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 10 ,
Is it true to say that the mean, mode and median of grouped data will always be different ? Justify your answer.
26
Nov
Is it true to say that the mean, mode and median of grouped data will always be different ? Justify your answer. Is it true to say that the mean mode and median of grouped data will always be different ? Justify your answer. November 26, 2020 Category: Chapter 14 - Statistics , Chapter 15 [...]
In calculating the mean of grouped data, grouped in classes of equal width, we may use the formula, x = a + ∑fidi/∑fi
26
Nov
In calculating the mean of grouped data, grouped in classes of equal width, we may use the formula, x = a + ∑fidi/∑fi grouped in classes of equal width In calculating the mean of grouped data we may use the formula x = a + ∑fidi/∑fi November 26, 2020 Category: Chapter 14 - Statistics , [...]
A school has five houses A, B, C, D and E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C, 2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student is not from A, B and C is
26
Nov
A school has five houses A, B, C, D and E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C, 2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student [...]
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2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student is not from A ,
4 from house A ,
5 from house C ,
8 from house B ,
A school has five houses A ,
B ,
B and C is ,
C ,
D and E. A class has 23 students ,
Someone is asked to take a number from 1 to 100. The probability that it is a prime, is
26
Nov
Someone is asked to take a number from 1 to 100. The probability that it is a prime, is is Someone is asked to take a number from 1 to 100. The probability that it is a prime November 26, 2020 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT [...]
One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5 is
26
Nov
One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5 is One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number [...]
A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, then how many tickets has she bought?
26
Nov
A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, then how many tickets has she bought? A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold then how many tickets [...]