Answer:
2.42
Step-by-step explanation:
standard deviation= sqrt(variance)
Variance=E[X2] - E[X]2
E[X] = sum(X)/n=35/9, so E[X]2 = 1225/81
E[X2] =sum(X2)/n = 189/9 = 170/81
Variance= 476/81
Standard deviation = sqrt(476/81) ~2.42
Answer: The measure of the central angle of the circle is 73°
Step-by-step explanation: Please see the attachments below
Hi there
5a + d - bc
for a = 5, b=7, c=2 ,d =4
5(5) + 4 -7(2)
25+ 4 - 14
21 - 14
7
I hope that's help !
Answer:
Step-by-step explanation: