Answer:
#2
Step-by-step explanation:
<span>It is because even numbers always have a factor of two, and therefore, larger composite even numbers will have factors of two and other even numbers based around two, such as 4, 8, 16, 32, and so on. On the other hand, numbers which are odd can have factors of 3, 5, and 7 for example, and their numbers based around them(3, 9, 27; 5, 10, 15; 7, 49, 343; and so on). If we look into it, notice how for odd numbers the space between the numbers based around 3, 5, and 7 are increasingly further apart. This is the reason why less large odd integers to have numerous factors. It is because odd numbers cannot have the prime factor 2, this will reduce their factor number. And is is also because even numbers are already divided by 2, this will give them more factors over the odd numbers.</span>
Answer: p = 0.00714
Step-by-step explanation:
Since the population standard deviation of the distribution is known, the z test ( which produces the z score) is the perfect test for finding the probability of the data set in the question.
From the question,
Population mean (u) = 114.8
Sample mean (x) = 121.5
Population standard deviation (σ) = 13.1
Sample size (n) = 23
The z score formulae is given below as
Z = x - u/σ/√n
Z = 121.5 - 114.8/(13.1/√23)
Z = 6.7/(13.1/√23)
Z = 6.7/2.731
Z = 2.45.
The question is interested in knowing the probability of mean systolic blood pressure greater than 121.5.
This implies that we are looking for the probability at which our z score is greater than 2.45: P(z>2.45)
The z score (z=2.45) has divided the distribution into two regions, z< 2.45 ( area to the left of the distribution) and z>2.45 ( area to the right of distribution).
Hence, p(z>2.45) + p(z<2.45) = 1
To get a the probability, we have to use a standard normal distribution table.
The table we have here gives probability of the distribution to the left ( that's area towards the left), hence we need to find p(z<2.45) first
From the table p(z<2.45) = 0.99286
But p(z>2.45) = 1 - p(z<2.45)
p(z>2.45) = 1 - 0.99286
p(z>2.45) = 0.00714
Answer:123456789/j
Step-by-step explanation:
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