11712 divided by 5.28
2 answers:
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Answer:
180.48
Step-by-step explanation:
The area of a rectangle = bh
Area of a circle = π
Rectangle = 8 x 10 = 80
Circle = 3.14() = 200.96
But because it's a hlaf circle, divide the number by 2
100.48
Now add the numbers together
180.48
Answer:
0.0139
Step-by-step explanation:
Given that in a test for extrasensory perception, the experimenter looks at cards containing either a star, circle, wave, or square. (The subject cannot see the cards.)
Probability for guessing a correct shape out of 4 shapes = 0.25
Each trial is independent of the other
Hence X no of correct guesses is binomial with n = number of cards = 20 and p = constant probability =0.25
the probability a subject correctly guesses at least 10 of the 20 shapes
=, where F represents the cumulative probability upto 9
= 0.0139