Answer:
The answer is below
Step-by-step explanation:
From the table, the mean (μ) = 1390.75 and the standard deviation (σ) = 518.75
The confidence level (C) = 90% = 0.9
α = 1 - C = 1 - 0.9 = 0.1
α/2 = 0.1 / 2 = 0.05
The z score of α/2 (0.05) is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.645.
The margin of error (E) is given as:
The confidence interval = μ ± E = 1390.75 ± 228.07 = (1162.68, 1618.82)
The confidence interval is between 1162.68 and 1618.82.
Answer:
3 1/3
Step-by-step explanation:
10+z=z+z+z+z
10+z=4z
10=3z
z=3 1/3
Answer:
\frac{1}{230230}
Step-by-step explanation:
Given that in a certain lottery, an urn contains balls numbered 1 to 26
From this urn, 6 balls are chosen randomly, without replacement.
Bet amount 1 dollar and he selects a set of six numbers.
If these match with those chosen from the urn he wins (order does not matter)
Total ways of choosing 6 out of 26 = 
The way he selects = 1
Hence probability of winning =
with one ticket
Answer is year 3
Ben 19
Amy 22
Answer:
Part A: <em>x = </em>55°
Step-by-step explanation:
<em>Part A Work:</em>
x + 65 = 120
<em>Part B Work:</em>
<em>
</em>The transversal passes through the 2 conforming lines which allows you to use rules such as opposing interior angles. <em>
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<em>hope this helps!</em>
<em>- Kiniwih426</em>
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