Answer:
See the Attachment
Step-by-step explanation:
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your confirm answer is 9/16
Frequency of Bulbs having life time less than 900 hrs :
Life Time Frequency
300 10
500 12
700 23
Total 45
Probability = 45/80 = 9/16
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Answers & Comments
Answer:
See the Attachment
Step-by-step explanation:
Hope you will Understand
Please mark me brainlist pls
Drop thanks
Wait wait somthing went wrong
your confirm answer is 9/16
Answer:
Frequency of Bulbs having life time less than 900 hrs :
Life Time Frequency
300 10
500 12
700 23
Total 45
Probability = 45/80 = 9/16