Total number of cards = 52
Total number of spades = 13
Total number of face cards that are not spades = 3 x 3 = 9
Total number of spades or face cards = 13 + 9 = 22
P(a or b) = 22/52 = 11/26
Answer: 11/26
Answer:
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Step-by-step explanation:
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Answer:
yo do people actually answer these? anyways amos: arianasurf.2020
Answer: 482
Step-by-step explanation:
Formula to find the sample size is given by :-
(1)
, where z* = critical z-value (two tailed).
= Population standard deviation and E = Margin of error.
As per given , we have
Margin of error : E= 3

Confidence level = 90%
Significance level =
Using z-table , the critical value for 90% confidence=
Required minimum sample size =
[Substitute the values in formula (1)]

[ Round to the next integer]
Hence, the number of observations required is closest to 482.
Answer:
your zeros are
x=0
x=1
Step-by-step explanation: