The sample mean of the random sample is 50
The margin of error (E) is the amount of error allowed in the random sample.
The confidence interval (CI) is given by:
CI = μ ± E = (μ - E, μ + E)
Given a confidence interval of (38.02, 61.98), hence:
μ - E = 38.02 (1)
μ + E = 61.98 (2)
Hence solving equations 1 and 2 simultaneously gives:
μ = 50, E = 11.98
Hence the sample mean of the random sample is 50
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Answer:
4(x + 2)
Step-by-step explanation:
Factor out common factors from each term. Note the factors for each number
4: 1, 2, 4
8: 1, 2, 4, 8
The largest factor for each is 4, and so divide 4 from both terms.
(4x + 8)/4 = (x + 2)
4(x + 2) is your factored expression.
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Answer:
The cost of one ticket will be £8.20
