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Answer:
It is 270, 810 and 2430
Step-by-step explanation:
10 x 3 = 30
30 x 3 = 90
90 x 3 = 270
270 x 3 = 810
810 x 3 = 2430
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Answer:
65
Step-by-step explanation:
Answer: C. Silurian, Triassic, Jurassic, Tertiary
She made 10.
25% of 40 is 10.
Answer:
(0.089 ; 0.151)
Step-by-step explanation:
Given :
Sample size, n = 300
Number of defective items, x = 36
The confidence interval required here is that for a one sample proportion :
The confidence interval is defined thus :
Phat ± Zcritical * √[Phat(1 - phat) / n]
Zcritical at 90% = 1.645
Phat = x / n = 36 / 300 = 0.12
Hence,
C.I = 0.12 ± 1.645 * √[0.12(1 - 0.12) / 300]
C.I = 0.12 ± (1.645 * 0.0187616)
C.I = 0.12 ± 0.0308629
C.I = (0.089 ; 0.151)
