Answer:
<h2>D. 9</h2>
Step-by-step explanation:
Answer:
since there is 8 ones on the left and 4 ones on the right as well as the balance being equal we know that X+4 = 8. so that means 8-4=X. use a calculator to figure out 8-4 (The right minus the left)
Step-by-step explanation:
since there is 8 ones on the left and 4 ones on the right as well as the balance being equal we know that X+4 = 8. so that means 8-4=X. use a calculator to figure out 8-4 (The right minus the left)
Answer: here you go
Step-by-step explanation:
1st probability: green first then blue second: 6/10*4/9 = 24/90 or about 0.27
2nd probability: blue first then green second: 4/10*6/9 = same as first answer (about 0.27)
Answer:
768
Step-by-step explanation:
Given that:
Error margin (E) = 5% = 0.05
Confidence level = 95%
Proportion p = 0.5 (since no prior value is given) ; also n1 = n2 = sample size
n = (Z / E)^2 * (1 - p)
1 - p = 1 - 0.5 = 0.5
Zscore at 95% confidence = 1.96
n = (1.96 / 0.05)^2 * 0.5
n = 39.2^2 * 0.5
n = 1536.64 * 0.5
n = 768.32
Hence, sample size = 768 SAMPLES
