Two tailors, Valentina and Laura, sit down to do some embroidery. Valentina can embroider 2 shirts per hour, and Laura can get t
1 answer:
Answer:
Valentina and Laura finished the same total number of shirts in hours.
Total number of shirts finished by Valentina
Total number of shirts finished by Laura
Step-by-step explanation:
Suppose that Valentina and Laura finished the same total number of shirts in hours.
Valentina can embroider 2 shirts per hour and Valentina has already completed 15 shirts.
Total number of shirts finished by Valentina
Laura can get through 3 shirts per hour and Laura has completed 11 shirts.
Total number of shirts finished by Laura
Therefore,
So,
Valentina and Laura finished the same total number of shirts in hours.
Total number of shirts finished by Valentina
Total number of shirts finished by Laura
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Answer:
The chance of getting exactly 3 hits is = 0.20
Step-by-step explanation:
P.S - The exact question is -
As given,
F(x) = 0 , x < 1
0.30 , 1 ≤ x < 2
0.56 , 2 ≤ x < 3
0.76 , 3 ≤ x < 4
0.9 , 4 ≤ x < 5
1 , 5 ≤ x
Now,
f(x) = 0.30 , x = 1
0.56 - 0.30 = 0.26 , x = 2
0.76 - 0.56 = 0.20 , x=3
0.9 - 0.76 = 0.14 , x = 4
1 - 0.9 = 0.1 , x = 5
0, otherwise
Now,
The chance of getting exactly 3 hits is = f(x = 3) = 0.20
