Three coins were tossed 30 times simultaneously.Each time thenumber of heads occurring was noted down asfollows :
Prepare a frequency distribution for the data given above

Distance (in km) of 40 engineers from their place of residence to their place of work were found as follows Construct n grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0— 5 (5 not included). What main features do you observe from this tabular representation ?

Distance of 40 engineers from their place of residence to their place of work were found as follows construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5. what main featues do you observe from his tabular representation.

A coin is tossed 4 times. X is the number of heads observed. Find the probability distribution of X .

A coin is tossed 4 times. Let X denote the number of heads. Find the probability distribution of X, its mean and variance.

A coin is tossed 5 times . X is the number of heads of observed . Find the probability distribution of X .

Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes : If the three coins are simultaneously tossed again, compute the probability of 2 heads coming up.

A fair coin is tossed 12 times. Find the probability that two heads do not occur consectively.

Two dice are thrown simultaneously 500 ties. Each time the sum of two numbers appearing on their tops is noted and recorded as given in the following table: If the dice are thrown once more, what is the probability of getting a sum: more than 10

Two dice are thrown simultaneously 500 ties. Each time the sum of two numbers appearing on their tops is noted and recorded as given in the following table: If the dice are thrown once more, what is the probability of getting a sum: less than or equal to 5?

Two dice are thrown simultaneously 500 ties. Each time the sum of two numbers appearing on their tops is noted and recorded as given in the following table: If the dice are thrown once more, what is the probability of getting a sum: between 8 and 12?