Why do we use the standard uncertainty in the mean to quantify the uncertainty in the mean of a data set
1 answer:
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Answer:
5/8
Step-by-step explanation:
How much pizza is left between Mary and Hector combined?
Since both had a medium pizza, we'll say the pizzas were the same size.
So, we just have to make the sum:
The addition is easy since both members of the addition have the same denominator (8). So, we just have to add up the numerators.
Since 5/8 is already expressed to its most simple expression, that's the answer.
Answer:
a₂₀ = - 137
Step-by-step explanation:
there is a common difference between consecutive terms , that is
7 - 15 = - 9 - (- 1) = - 17 - (- 9) = - 8
This indicates the sequence is arithmetic with nth term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
here a₁ = 15 and d = - 8 , then
a₂₀ = 15 + (19 × - 8) = 15 + (- 152) = 15 - 152 = - 137