Question
A data has $25$ observations arranged in a descending order. Which observation represents the median?
✓
Answer
Number of observation $= n = 25$ (odd)
Hence, median = value of $\Big(\frac{\text{n}+1}{2}\Big)^{\text{th}}$ observation
= Value of $\Big(\frac{25+1}{2}\Big)^\text{th}$ observation
= Value of $13^{th}$ observation
Hence, median = value of $\Big(\frac{\text{n}+1}{2}\Big)^{\text{th}}$ observation
= Value of $\Big(\frac{25+1}{2}\Big)^\text{th}$ observation
= Value of $13^{th}$ observation
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
More "2 Marks Questions" from Mean, Median, Mode of Grouped Data, Cumulative Frequency Graph and Ogive→Mean, Median, Mode of Grouped Data, Cumulative Frequency Graph and Ogive — all question types→Maths STD 10 question papers→Maharashtra Board STD 10 question papers→Maharashtra Board question paper generator→
Similar questions
$\triangle\text{ABD}$ is a right triangle right-angled at A and $\text{AC}\perp\text{BD}.$ Show that
$\frac{\text{AB}^2}{\text{AC}^2}=\frac{\text{BD}}{\text{DC}}$
→$\frac{\text{AB}^2}{\text{AC}^2}=\frac{\text{BD}}{\text{DC}}$
Without actually performing the long division, state whether state whether the following rational numbers will have a terminating decimal expansion or a non terminating repeating decimal expansion.
$\frac{125}{441}$
→$\frac{125}{441}$
In a circle of radius 21cm, an arc subtends an angle of 60° at the centre. Find the length of the arc.
If $\alpha$ and $\beta$ are the zeroes of the quadratic polynomial$ f(x) = ax^2 + bx + c$, then evaluate:
$\alpha-\beta$
→$\alpha-\beta$
Find the correct answer from the alternatives given.The median of the distances covered per litre shown in the above data is in the group $. . . . .$
→ All kings and queens are removed from a pack of 52 cards. The remaining cards are well-shuffled and then a card is randomly drawn from it. Find the probability that this card is:
- A red face card.
- A black card.
An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.
A game consists of tossing a one-rupes coin three times, and noting its outcome each time. Find the probability of getting.
-
Three heads.
-
At least 2 tails.
Marks of 60 students in a class are tabulated below. For finding mode the Lower limit of modal class (L) = --------
Marks | 10 – 19 | 20 – 29 | 30 – 39 | 40 – 49 | 50 – 59 | 60 – 69 |
Number of students | 3 | 8 | 16 | 12 | 10 | 8 |
If $2\sin\theta=\sqrt{3},$ prove that $\theta=30^\circ.$
→