Probability Tes...

There are $$40$$ students in a class and their results is presented as below :

$$400$$ students of class $$X$$ of a school appeared in a test of $$100$$ marks in the subject of social
studies and the data about the marks secured is as below :

If the result card of a student he picked up at random, what is the probability that the student has secured more than $$50$$ marks.

There are $$40$$ students in a class and their results is presented as below :

If a student chosen at random out of the class, find the probability that the student has passed the examination.

A coin is tossed $$150$$ times and the outcomes are recorded. The frequency distribution of the outcomes $$H$$ (i.e, head) and $$T$$ (i.e, tail) is given below :

Find the value of $$P(H)$$, i.e, probability of getting a head in a single trial.

A die having six faces is tossed $$80$$ times and the data is as below:

Find $$P (1) $$.

A die is thrown $$200$$ times and the outcomes $$1, 2, 3, 4, 5, 6$$ have frequencies as below:

Find the probabilities of getting a number more than $$1$$ and less than $$6$$ in a toss (trial).

There are $$500$$ packets in a large box and each packet contains $$4$$ electronic devices in it. On testing, at the time of packing, it was noted that there are some faulty pieces in the packets. The data is as below:

If one packet is drawn from the box, what is the probability that all the four devices in the packet are without any fault?

In a shooting game, John shoots the balls $$20$$ times out of $$40$$ trials. What is the empirical probability of the shooting event?

Find probability of bag chosen out random contains more than $$5\ kg$$.

What is the probability that there are $$5$$ Mondays in the month of February 2016?