The first outcome is either red or blue and in the second outcome either blue ball or red ball will be drawn (without replacement) means that the denominator will decrease but in one case blue decreases n red remains . The other case red decreases ( means it is drawn) n blue remains so u will see the fraction above
The confidence interval is from 9.81 to 10.19.
We first find the mean of the data:
<span>(9.8+10.2+10.4+9.8+10.0+10.2+9.6)/7 = 10
Next we find the standard deviation:
</span>σ=√([<span>(9.8-10)^2+(10.2-10)^2+(10.4-10)^2+(9.8-10)^2+(10-10)^2+(10.2-10)^2+(9.6-10)^2]/7) = 0.262
The z-score for 95% confidence is found by
1-0.95 = 0.05; 0.05/2 = 0.025; from the z-table, it is 1.96.
The confidence interval is calculated using
</span>
<span>
</span>
Answer:
i need them
Step-by-step explanation:
It will take 6 weeks for Brad to get twice the amount as Sonya.
Sonya will have $260 dollars and Brad will have $360
