Z = ( X - Mean ) / SD
z = ( 646 - 597 ) / 39
z = 49/39 = 1.25
With the z-score table:
for z = 1.25, p = 0.8944 ( probability that the cost will be lower than $646 )
1 - 0.8944 = 0.1056
Answer: <span>The probabilit</span>y is 0.1056
the school purchased 742 items in total.
Just add 256+332+154
which equals...742. :)
Answer:
The farmers were happy because the botanist (plant scientist) said their grape and wheat fields would have plentiful yields this coming harvest.
Your answer would be y=5/3x+8
