Answer:
25
Step-by-step explanation:
A. Craig is taller
B. The positive is higher than the negative value
Answer:
0.1369
(4.732, 5.268)
Step-by-step explanation:
Given that:
Mean, m = 5
Standard deviation, s = 1.5
Error margin, E = 0.5
Sample size, n = 120
Zcritical at 95% = 1.96
Standard Error of the mean (S. E) :
S. E = s /sqrt(n)
S. E = 1.5 / sqrt(120
S.E = 1.5 / 10.954451
S. E = 0.1369306
S. E = 0.1369
Confidence interval (C. I)
Mean ± (Zcritical * S.E)
5 ± (1.96 * 0.1369)
Lower boundary = 5 - 0.268324 = 4.731676
Upper boundary = 5 + 0.268324 = 5.268324
(4.732, 5.268)
Answer:
4
Step-by-step explanation:
To find the degree of the polynomial, add up the exponents of each term and select the highest sum.
6 ft person casts 18 ft shadow
x ft tree casts 20 ft shadow
6*20 = 18x
120 =18x
x=120/18
×≈6.67