Answer:
1. I=P*i*t
1365=6500*7%*t
1365=455*t
t=3
2.-Students 40
Like mathematics
= 40*80
=32
Don´t like it is
=40-32
=8
Step-by-step explanation:
1. I=P*i*t
1365=6500*7%*t
1365=455*t
t=3
2.-Students 40
Like mathematics
= 40*80
=32
Don´t like it is
=40-32
=8
a. Venn diagram attached below.
b. 2 students are in neither English nor Chemistry.
c. The probability that a randomly chosen student is only taking chemistry is 24/40, or 6/10 because out of the 40 students, 24 of them take exclusively the chemistry class.
Given:
mean, μ = 11 lb
Std. deviation, σ = 2.1
Let x = the weight that separates the top 5% of the crop.
The z-score is
z = (x - μ)/σ
= (x - 11)/2.1
From standard z-table for normal distribution,
P(z=1.645) = 0.95
Therefore
(x - 11)/2.1 = 1.645
x - 11 = 1.645/2.1 = 0.7833
x = 11.783
Answer: 11.8 lb (nearest tenth)
