Answer:
0.85083 ; 0.83147 ; 0.6823 ; 0.015386
Step-by-step explanation:
Given that:
σ = 25
μ = 86
(a) x is more than 60
P(x > 60)
obtain standardized score (Zscore)
Zscore = (x - μ) / σ
Z = (60 - 86) /25
Z = - 1.04
P(Z > - 1.04) = 0.85083 (Z probability calculator)
(b) x is less than 110
P(x < 110)
obtain standardized score (Zscore)
Zscore = (x - μ) / σ
Z = (110 - 86) /25
Z = 0.96
P(Z < 0.96) = 0.83147 (Z probability calculator)
(c) x is between 60 and 110
P(x < 110) - P(x < 60)
P(Z < 0.96) - P(Z < - 1.04)
0.83147 - 0.14917
= 0.6823
(d) x is greater than 140
P(x > 140)
obtain standardized score (Zscore)
Zscore = (x - μ) / σ
Z = (140 - 86) /25
Z = 2.16
P(Z > 2.16) = 0.015386 (Z probability calculator)
Step-by-step explanation:
Answer:
I don't know the answer I cannot help u
Answer:
equation= y-y¹=m(x-x¹)
where m = gradient or slope
slope= <u>y²</u><u>-</u><u>y</u><u>¹</u>
x²-x¹
= <u>4--</u><u>7</u>
-1--3
= <u>4+7</u>
-1+3
= <u>1</u><u>1</u>
2
= 5.5
equation= y-4=5.5(x--1)
= y-4=5.5(x+1)
y-4= 5.5x+5.5
y= 5.5x+5.5+4
y= 5.5x+9.5
I don't know but i think 113.09733552923255