Answer:
a. 0.71
b. 0.9863
Step-by-step explanation:
a. The average of the distribution is specified as $403,000 with a standard deviation of $278,000.
-To calculate the probability of a randomly selected house having a value under $500,000:
Consequently, the probability that a randomly chosen house is valued at less than $500,000 is 0.71
b. -because 40 is greater than or equal to 30, we assume a normal distribution.
-As such, the probability can be computed as:
Thus, the likelihood that the average value of the 40 selected houses is below $500,000 is 0.9863
Answer:
Step-by-step explanation:
The probability that a mosquito lands on your neck per second is 0.5
The chance of it biting once it lands is 0.2
The likelihood that it does not bite after landing is 0.8
Therefore, the probability of a bite in one second is
This translates to a 1/100 likelihood of being bitten in just one second
Over the course of 100 seconds, the expected number of bites is
The anticipated interval between bites is 100