Mathematics, 19.05.2021 04:00, bgallman153p71edg

A representative sample of 80 customers in a clothing store was surveyed about how they paid for their purchases. The table shows the responses. Based on the results, which of the following are valid inferences. Select all that apply. a
Tomorrow, 8 out of the first 80 customers will for sure pay with a gift card.
b
In a group of 40 customers, it is expected that about 10 will pay with cash.
c
About 0.3, or 30%, of all the store's customers, will pay with a credit card.
d
A sample of 100 customers would provide less reliable data.

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A representative sample of 80 customers in a clothing store was surveyed about how they paid for the...