c. Give a brief explanation of SD d. Give a brief explanation of IQR
Addition Rule of Probability
It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.
Expected Value
When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known as the expectation, is denoted by: E(X).
Probability Distributions
Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosing a card. Each of these events has multiple possibilities. Every such possibility is measured with the help of probability. To be more precise, the probability is used for calculating the occurrence of events that may or may not happen. Probability does not give sure results. Unless the probability of any event is 1, the different outcomes may or may not happen in real life, regardless of how less or how more their probability is.
Basic Probability
The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the probability value 1 indicates that the event will occur. Sum of the probability value must be 1. The probability value is never a negative number. If it happens, then recheck the calculation.
Good Afternoon
Can you please solve the following question: e,f,g.
Also can you give me an idea on what is desired by c and d?
Thank you
![4.
Patients with confirmed COVID-19 and 24h data
Demographics
Hammersmith Hospital
All critical care units
General Adult Critical Care
(N=10,421)
Unit (N=78)
Age at admission (years) [N=78]
Mean (SD)
57.2 (10.3)
58.8 (12.7)
Median (IQR)
59 (50, 64)
60 (51, 68)
Looking at the above summary statistics from July 2020 for patients with confirmed Covid-19 in
adult critical care, answer the following questions:
a. What is the sample size for patients with confirmed COVID 19 were in Adult Critical Care
beds in the sample hospital (Hammersmith Hospital)
b. What is the sample size for All critical care units for Patients with confirmed COVID19
c. Give a brief explanation of SD
d. Give a brief explanation of IQR
e. How old were the patients in General Adult Critical Care with confirmed COVID19 one SD
below the mean at Hammersmith Hospital
f. How old were the patients in General Adult Critical Care with confirmed COVID19 on the
25th centile at Hammersmith Hospital
g. Calculate o².](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F570a0cea-4fce-429d-aa08-e0d6b435c900%2F11d69690-47df-413b-8ffd-4ecb483f2b8b%2Faxuff6h_processed.png&w=3840&q=75)
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