Consider a population consisting of values 2, 3, 5, 7. what is the population standard deviation?

The population standard deviation is 1.92.

Step-by-step explanation:

Population mean:

Sum of all values divided by the number of values. Thus:

Population standard deviation:

Square root of the division between the sum of the difference squared of each value and the mean, and the number of values. Thus.

The population standard deviation is 1.92.

(C)

Step-by-step explanation:

Whenever a triangle has two sides congruent, then that triangle is known as an isosceles triangle.

Now, it is given that there is a triangle with one right angle, thus the triangle will be right angled and also that triangle has two sides congruent, then this triangle will be a right angled isosceles triangle.

Since, a scalene triangle has all the sides unequal in measure, therefore, the given triangle will be definitely a right angled isosceles triangle.

Hence, option C is correct.