Salmonellosis outbreak. Improperly handled or undercooked poultry and eggs are the most frequent cause of salmonella food poisoning. Salmonellosis can be deadly, although most individuals recover on their own. Cases must be reported to the CDC, where they are closely monitored. The average number of salmonellosis cases per month in South Dakota is 1.6. Let X be the monthly count of salmonellosis cases in South Dakota. a) Identify an appropriate probability distribution model for X. b) Find the mean and standard deviation of X. Round to 2 decimal places mean = standard deviation = c) The mean and standard deviation of salmonellosis cases in South Dakota over a six month period are mean =

a) Poisson probability distribution model

b)

Mean=1.6.

Standard deviation=1.26.

c)

Mean=9.6.

Standard deviation=3.10.

Step-by-step explanation:

a)

The number of cases of salmonellosis has a rare frequency of occurring and also we can assume that trails are independent. So, the X  the monthly count of salmonellosis cases in South Dakota is a Poisson random variable.

Thus, the appropriate probability distribution model for X is the Poisson probability distribution model.

b)

The mean and variance of the Poisson probability distribution model is μ the average number of salmonellosis cases per month in South Dakota.

Mean=E(x)=μ=1.6

Standard deviation=√V(x)=√μ=√1.6=1.26

c)

The average number of salmonellosis cases per month =1.6

The average number of salmonellosis cases over 6 months=6*1.6=9.6

The mean and variance of the Poisson probability distribution model is μ the average number of salmonellosis cases over 6 months in South Dakota.

Mean=E(x)=μ=9.6

Standard deviation=√V(x)=√μ=√9.6=3.10

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

the diameter is 16 cm. are you a teacher?

step-by-step explanation: