Answer:
-1/6
Step-by-step explanation:
-1/2 + (3/4 * 4/9)
Parentheses first
Rewriting
-1/2 +(3/9 *4/4)
-1/2 +(1/3)
Getting a common denominator of 6
-1/2 *3/3 + 1/3 *2/2
-3/6 +2/6
-1/6
Answer:
I think its 21.34 sorry if i am wrong
The probability density function (pdf) is;
f(x)=
for a ≤ x ≤ b.
while the mean is given as ![\frac{a + b}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Ba%20%2B%20b%7D%7B2%7D)
And the standard deviation given as ![\sqrt{\frac{(b - a)^{2} }{12} }](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B%28b%20-%20a%29%5E%7B2%7D%20%7D%7B12%7D%20%7D)