Students are usually tested on various subjects to determine the level of intelligence. in an intelligence examination administered to 2000 students of MBA programmes, the average score recorded by the lecturer was 42 and deviation of the scores from their mean is 24. assuming that the distribution of scores is normal, find... a. the number of students whose score exceeds 50
b. the number of students whose score is between 30 and 40
c. the score corresponding to the standardized normal value of 2
d. what is the probability of a score which is less than 70
e. how many students would have a score of at least 66

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

1. minimum

2. 6400

3. eight

hope this !

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180