If you appreciate our work, consider supporting us:
ANSWER:
We can use the z-score formula rearranged to find the value:
X=μ+(z×σ)X = \mu + (z \times \sigma)X=μ+(z×σ)
Where
μ=80,000\mu = 80{,}000μ=80,000
σ=5,000\sigma = 5{,}000σ=5,000
z=2z = 2z=2
X=80,000+(2×5,000)X = 80{,}000 + (2 \times 5{,}000)X=80,000+(2×5,000) X=80,000+10,000=90,000X = 80{,}000 + 10{,}000 = 90{,}000X=80,000+10,000=90,000
✅ Layla makes $90,000.
