Chapter 15 – Probability
3. The scores (out of 100) obtained by 33 students in a mathematics test are as follows: Represent this data in the form of a frequency distribution.
03
Jul
3. The scores (out of 100) obtained by 33 students in a mathematics test are as follows: Represent this data in the form of a frequency distribution. 3. The scores (out of 100) obtained by 33 students in a mathematics test are as follows: Represent this data in the form of a frequency distribution. July [...]
2. The value of π upto 35 decimal places is given below: 3. 14159265358979323846264338327950288 Make a frequency distribution of the digits 0 to 9 after the decimal point.
03
Jul
2. The value of π upto 35 decimal places is given below: 3. 14159265358979323846264338327950288 Make a frequency distribution of the digits 0 to 9 after the decimal point. 2. The value of π upto 35 decimal places is given below: 3. 14159265358979323846264338327950288 Make a frequency distribution of the digits 0 to 9 after the decimal [...]
1. The blood groups of 30 students are recorded as follows: A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A Prepare a frequency distribution table for the data
03
Jul
1. The blood groups of 30 students are recorded as follows: A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A Prepare a frequency distribution table for the data 1. The blood groups of 30 [...]
10. As the number of tosses of a coin increases, the ratio of the number of heads to the total number of tosses will be 1/2 . Is it correct? If not, write the correct one.
03
Jul
10. As the number of tosses of a coin increases, the ratio of the number of heads to the total number of tosses will be 1/2 . Is it correct? If not, write the correct one. 10. As the number of tosses of a coin increases the ratio of the number of heads to the [...]
9. Can the experimental probability of an event be greater than 1? Justify your answer.
03
Jul
9. Can the experimental probability of an event be greater than 1? Justify your answer. 9. Can the experimental probability of an event be greater than 1? Justify your answer. July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,
8. Can the experimental probability of an event be a negative number? If not, why?
03
Jul
8. Can the experimental probability of an event be a negative number? If not, why? 8. Can the experimental probability of an event be a negative number? If not why? July 3, 2021 Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,
7. 30 children were asked about the number of hours they watched TV programmes last week. The results are recorded as under : Can we say that the number of children who watched TV for 10 or more hours a week is 22? Justify your answer
03
Jul
7. 30 children were asked about the number of hours they watched TV programmes last week. The results are recorded as under : Can we say that the number of children who watched TV for 10 or more hours a week is 22? Justify your answer 1. The class mark of the class 90 - [...]
6. The class marks of a continuous distribution are : 1.04, 1.14, 1.24, 1.34, 1.44, 1.54 and 1.64 Is it correct to say that the last interval will be 1.55 – 1.73? Justify your answer.
03
Jul
6. The class marks of a continuous distribution are : 1.04, 1.14, 1.24, 1.34, 1.44, 1.54 and 1.64 Is it correct to say that the last interval will be 1.55 – 1.73? Justify your answer. 1.14 1.24 1.34 1.44 1.54 and 1.64 Is it correct to say that the last interval will be 1.55 - [...]
5. Is it correct to say that in a histogram, the area of each rectangle is proportional to the class size of the corresponding class interval? If not, correct the statement.
03
Jul
5. Is it correct to say that in a histogram, the area of each rectangle is proportional to the class size of the corresponding class interval? If not, correct the statement. 5. Is it correct to say that in a histogram correct the statement. the area of each rectangle is proportional to the class size [...]
4. A football player scored the following number of goals in the 10 matches : 1, 3, 2, 5, 8, 6, 1, 4, 7, 9 Since the number of matches is 10 (an even number), therefore, the median Is it the correct answer and why?
03
Jul
4. A football player scored the following number of goals in the 10 matches : 1, 3, 2, 5, 8, 6, 1, 4, 7, 9 Since the number of matches is 10 (an even number), therefore, the median Is it the correct answer and why? 1 2 3% 4 4. A football player scored the [...]