Download App

Probability — Maths STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9MathsProbability4 Marks
Question
Define a trial.
✓

Answer

What is the meaning of trial?
The word trial means a test of performance, qualities, or suitability.
Definition:
Any particular performance of a random experiment is called a trial. That is, when we perform an experiment it is called a trial of the experiment. By experiment or trial, we mean a random experiment unless otherwise specified. Where you are required to differentiate between a trial and an experiment, consider the experiment to be a larger entity formed by the combination of a number of trials.
To illustrate the definition, let us take examples:
  1. In the experiment of tossing 4 coins, we may consider tossing each coin as a trial and therefore say that there are 4 trials in the experiment.
  2. In the experiment of rolling a dice 5 times, we may consider each rolls as a trial and therefore say that there are 5 trials in the experiment.
Note that rolling a dice 5 times is same as rolling 5 dices each one time. Similarly, tossing 4 coins is same as tossing one coin 4 times.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "4 Mark Question" from Probability→Probability — all question types→Maths STD 9 question papers→Maharashtra Board STD 9 question papers→Maharashtra Board question paper generator→

Similar questions

In a rhombus ABCD, the altitude from D to the side AB bisects AB. Find the angles of the rhombus.
→
The radii of two cylinders are in the ratio 2:3 and their heights are in the ratio 5:3. Calculate the ratio of their volumes and the ratio of their curved surfaces.
→
The numbers √2 and √3 shown on a number line.
→
Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes:
Outcome
3 heads
2 heads
1 head
No head
Frequency
23
72
77
28
Find the probability of getting at most two heads.
→
In a triangle ABC, if AB = AC and AB is produced to D such that BD = BC, find $\angle\text{ACD}:\angle\text{ADC}.$
→
Given, $\sqrt{2}=1.414$ and $\sqrt{6}=2.449,$ find the value of $\frac{1}{\sqrt{3}-\sqrt{2}-1}$ correct to 3 places of decimal.
→
A solid cylinder has a total surface area of $231cm^2$. Its curved surface area is $\frac{2}{3}$ of the total surface area.
Find the volume of the cylinder.
→
The number of runs scored by a cricket player in 25 innings is as follows:
26, 35, 94, 48, 82, 105, 53, 0, 39, 42, 71, 0, 64, 15, 34, 15, 34, 6, 71, 0, 64, 15, 34, 15, 34, 67, 0, 42, 124, 84, 54, 48, 139, 64, 47
  1. Rearrange these runs in ascending order.
  2. Determine the player, is highest score.
  3. How many times did the player not score a run?
  4. How many centuries did he score?
  5. How many times did he score more than 50 runs?
→
The measure of one of the angles of a triangle is twice the measure of its smallest angle and the measure of the other is thrice the measure of the smallest angle. Find the measures of the three angles.
→
Prove that the bisectors of two adjacent supplementary angles include a right angle.
→