Answer:
32
Step-by-step explanation:
By exterior angle theorem:
Answer:
Step-by-step explanation:
Answer:
0.125 meters
Step-by-step explanation:
Eloise's aunt cut 9.5 meters of ribbon into 4 equal sections and gave one of those sections to Eloise.
The length of the ribbon given to Eloise
= 9.5 meters/4
= 2.375 meters
Her friend Amelie has 2.5 meters of ribbon.
How much more ribbon does Amelie have than Eloise?
This is calculated as:
Number of meters of ribbon Amelie has - Number of meters if ribbon Eloise has
= 2.5 meter - 2.375 meters
= 0.125 meters
Therefore: Amelie has 0.125 meters of ribbon more than Eloise
Answer:
a) P(X>825)
b) This low value of probability of the sample outcome (as 825 voters actually did vote) suggests that the 60% proportion may not be the true population proportion of eligible voters that actually did vote.
Step-by-step explanation:
We know a priori that 60% of the eligible voters did vote.
From this proportion and a sample size n=1309, we can construct a normal distribution probabilty, that is the approximation of the binomial distribution for large samples.
Its mean and standard deviation are:
Now, we have to calculate the probabilty that, in the sample of 1309 voters, at least 825 actually did vote. This is P(X>825).
This can be calculated using the z-score for X=825 for the sampling distribution we calculated prerviously:
This low value of probability of the sample outcome (as 825 voters actually did vote) suggests that the 60% proportion may not be the true population proportion of eligible voters that actually did vote.
3 times because 1/4 times 3 equals 3/4 because the numerator changes but the denominator stays the same