Nine and one-half less than four and one-half times a number is greater than 62.5. Which of the following represents the solutio
2 answers:
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Answer:
13 Millilitres.
Step-by-step explanation:
Yoku applies 2ml to cover of his skin.
He seeks to find out how many millilitres he needs to cover of his body.
With 2ml, Yoku covers of his skin
He will use of sunscreen for covering
of his skin.
Thus:
For covering of his body, he will require:
he would need 13 Millilitres.
Answer:
(a1) The chance that the temperature rises by less than 20°C is 0.667.
(a2) The probability of the temperature increase falling between 20°C and 22°C is 0.133.
(b) The likelihood that the temperature increase could be hazardous at any moment is 0.467.
(c) The anticipated value of the temperature rise is 17.5°C.
Step-by-step explanation:
Let X denote the temperature increase.
The random variable X is distributed uniformly over the interval [10°C, 25°C].
The probability density function for X is shown here:
(a1)
The probability of the temperature increase being under 20°C can be calculated as follows:
Consequently, the chance that the temperature increase will be below 20°C is 0.667.
(a2)
The probability of the temperature rise being in the range from 20°C to 22°C is computed as follows:
This leads to the probability of the temperature increase being between 20°C and 22°C being 0.133.
(b)
To find the probability that the increase in temperature could be dangerous, we calculate:
This results in a probability of 0.467 that the temperature rise is potentially dangerous at any time.
(c)
The expected value of the uniform random variable X is determined as follows:
The expected value for the temperature increase computes to 17.5°C.