Maths
If P(E)=0.05, what is the probability of ‘Not E’?
06
Oct
If P(E)=0.05, what is the probability of ‘Not E’? If P(E)=0.05 what is the probability of 'Not E'? October 6, 2020 Category: Chapter 15 - Probability , Maths , NCERT Class 10 ,
Which of the following experiments have equally likely outcomes? Explain. (i) A driver attempts to start a car. The car starts or does not start. (ii) A player attempts to shoot a basketball. She/he shoots or misses the shot. (iii) A trial is made to answer a true-false question. The answer is right or wrong. (iv) A baby is born. It is a boy or a girl
06
Oct
Which of the following experiments have equally likely outcomes? Explain. (i) A driver attempts to start a car. The car starts or does not start. (ii) A player attempts to shoot a basketball. She/he shoots or misses the shot. (iii) A trial is made to answer a true-false question. The answer is right or wrong. [...]
Complete the following statements: (i) Probability of an event E + Probability of the event not E = ______. (ii) The probability of an event that cannot happen is _____. Such an event is called _____. (iii) The probability of an event that is certain to happen is _____. Such an event is called ______. (iv) The sum of the probabilities of all the elementary events of an experiment is _____. (v) The probability of an event is greater than or equal to _____ and less than or equal to ______.
06
Oct
Complete the following statements: (i) Probability of an event E + Probability of the event not E = ______. (ii) The probability of an event that cannot happen is _____. Such an event is called _____. (iii) The probability of an event that is certain to happen is _____. Such an event is called ______. [...]
The annual profits earned by 30 shops of a shopping complex in a locality give rise to the following distributions: Draw both ogives for the above data and hence obtain the median.
06
Oct
The annual profits earned by 30 shops of a shopping complex in a locality give rise to the following distributions: Draw both ogives for the above data and hence obtain the median. The annual profits earned by 30 shops of a shopping complex in a locality give rise to the following distributions: Draw both ogives [...]
The median of the following data is 525. Find the values of x and y, if the total frequency is 100
06
Oct
The median of the following data is 525. Find the values of x and y, if the total frequency is 100 if the total frequency is 100 The median of the following data is 525. Find the values of x and y October 6, 2020 Category: Chapter 14 - Statistics , Maths , NCERT Class [...]
A survey regarding the height (in cm) of 51 girls of class X of a school was conducted and the following data was obtained: Find the median height.
06
Oct
A survey regarding the height (in cm) of 51 girls of class X of a school was conducted and the following data was obtained: Find the median height. A survey regarding the height (in cm) of 51 girls of class X of a school was conducted and the following data was obtained: Find the median [...]
The mark distribution of 30 students in a mathematics examination are given. Find the mode of this data. Also compare and interpret mode and the mean.
06
Oct
The mark distribution of 30 students in a mathematics examination are given. Find the mode of this data. Also compare and interpret mode and the mean. The mark distribution of 30 students in a mathematics examination are given. Find the mode of this data. Also compare and interpret mode and the mean. October 6, 2020 [...]
A survey conducted on 20 households in a locality by a group of students resulted in the following frequency table for the number of family members in a household. Find the mode of this data.
06
Oct
A survey conducted on 20 households in a locality by a group of students resulted in the following frequency table for the number of family members in a household. Find the mode of this data. A survey conducted on 20 households in a locality by a group of students resulted in the following frequency table [...]
The distribution given below shows the number of wickets taken by bowlers in one-day cricket matches. Find the mean number of wickets by choosing a suitable method. What does the mean signify ?
06
Oct
The distribution given below shows the number of wickets taken by bowlers in one-day cricket matches. Find the mean number of wickets by choosing a suitable method. What does the mean signify ? The distribution given below shows the number of wickets taken by bowlers in one-day cricket matches. Find the mean number of wickets [...]
The table below gives the percentage distribution of female teachers in the primary schools of rural areas of various states and union territories (U.T.) of India. Find the mean percentage of female teachers by all the three methods discussed in this section.
06
Oct
The table below gives the percentage distribution of female teachers in the primary schools of rural areas of various states and union territories (U.T.) of India. Find the mean percentage of female teachers by all the three methods discussed in this section. The following table gives the distribution of the life time of 400 neon [...]