MCQ
The mean of first four prime numbers is:
- A$4.5$
- B$3.75$
- C$4$
- ✓$4.25$
✓
Answer
Correct option: D.
$4.25$
The mean is equal to the sum of all the values in the data set divided by the number of values in the data set.
The first $4$ prime numbers are $2, 3, 5, 7$
So, mean is $\frac{17}{4}=4.25$
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
Similar questions
The mean of the following data is $8.$
Then, the value of $p$ is:
→| $x$ | $3$ | $5$ | $7$ | $9$ | $11$ | $13$ |
| $y$ | $6$ | $8$ | $15$ | $p$ | $8$ | $4$ |
If $P (3,9)$ and $Q (-3,-4)$, then (abscissa of P ) - (ordinate of Q ) is
→Volume of hollow cylinder of height $h,$ with outer radius $R$ and inner radius $r.$
→The mid-value of a class interval is $42$. If the class size is $10$, then the upper and lower limits of the class are:
→Diagonals necessarily bisect opposite angles in a
In the given figure, $\angle\text{AOB}=90^\circ$ and $\angle\text{ABC}=30^\circ.$ Then, $\angle\text{CAO}=?$
→In Fig. $ABCD$ is a cyclic quadrilateral. If $\angle\text{BAC}=50^\circ$ and $\angle\text{DBC}=60^\circ$ then find $\angle\text{BCD}=\ ?$
→If $\frac{5-\sqrt{3}}{2+\sqrt{3}}=x+y \sqrt{3}$, then
→Points $(1, -1), (2, -2), (4, -5), (-3, -4).$
→If $\text{x}^2+\frac{1}{\text{x}^2}=38,$ then the value of $\text{x}-\frac{1}{\text{x}}$ is:
→