Answer:
16.5
Step-by-step explanation:
Find the value represented by a z-score of 2.403, given µ=63 and σ=4.25. Round your answer to one decimal place.
The z score formula =
z = (x-μ)/σ, where
x is the raw score = ?
μ is the population mean = 63
σ is the population standard deviation = 4.25
z = 2.403
Hence,
2.403 = (x - 63)/4.25
Cross Multiply
2.403 × 4.25 = x - 6.3
10.21275 = x - 6.3
Collect like terms
10.21275 + 6.3 = x
x = 16.51275
Approximately to 1 decimal place the value = 16.5
