Multiply all terms by the common denominator which is 15
Answer:
interval in minutes = (24.88, 35.12)
Step-by-step explanation:
we can use the following formula:
interval = population mean ± (z · σ)
- population mean = 30 minutes
- z for 80% = 1.28
- σ = 4 minutes
interval = 30 minutes ± (1.28 · 4 minutes)
interval in minutes = (30 - 5.12), (30 + 5.12) = (24.88, 35.12)
Answer:
the interquartile range is 13.5
minimum 16
maximum 43
medium 29
lower Q1 24
upper Q3 37.5 or 38
Range 27
Your answer would be 12.
She can use 12 connecting cubes to make the model in only two ways.
Answer:
Distributive
Step-by-step explanation:
3xk + 3x4