If the value of the z-score is 1. Then the probability that a cat will weigh less than 11 pounds will be 0.84134.
<h3>What is the z-score?</h3>
The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.
The z-score is given as
z = (x - μ) / σ
Where μ is the mean, σ is the standard deviation, and x is the sample.
The weight of a cat is normally distributed with a mean of 9 pounds and a standard deviation of 2 pounds.
Then the probability that a cat will weigh less than 11 pounds will be
The value of z-score will be
z = (11 – 9) / 2
z = 1
Then the probability will be
P(x < 11) = P(z < 1)
P(x < 11) = 0.84134
Thus, the probability that a cat will weigh less than 11 pounds will be 0.84134.
More about the z-score link is given below.
brainly.com/question/15016913
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Answer:
kool
Step-by-step explanation:
Well first divide 12×85=___ ÷340
Step-by-step explanation:
x = 3 or x = -2 we dont use the (-2) because we have a sqrt
So x =3
Answer:
73.5 kJ
Step-by-step explanation:
Mass of butane = 185 g
Heat of vaporization for butane = 23.1 kJ/mol
Molar mass of butane = 58.12 g/mol
Number of moles of butane = 
Energy required for burning 185 g of butane = 3.18×23.1 = 73.5 kJ
∴ Energy is required to vaporize 185 g of butane at its boiling point is 73.5 kJ
