28. The parasitic bacterium Pasteuria ramosa castrates and later kills its host, the crustacean Daphnia .The length of time between infection and magna. host death affects the number of spores eventually produced and released by the parasite, as the fol- lowing scatter plot reveals. The x-axis measures age at death for 32 infected host individuals, and the response variable is the square-root- transformed number of spores produced by the infecting parasite (Jensen et al. 2006). o 3000 - 6 To Jo1 A SE 2500 yeda nonom 2000 – श वि e ast -gto nisq A 00 Toayia 500 m 1500- :- hed 1000 - too booke gain ons 30 40 50 60 70 80 Host longevity (days)
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.
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