Question

if on an average 9 ship out of 10 arrive safely to ports, find the mean and S. D. of ships returning safety out of a total of 500 ships.​

Answer 1

Answer:

ਪਠੌਝਪਦਠਠਥਖਝਗਜਛਦਠਘਥਟਡਡਜਛਜਞਕਖਠਗੇਔਘਨਝਸਪਝਕਠਨਕਢਟਧਗਤਞਖਛੈਖਙਖੁਈਇਓਏਠਧਪਡਘਪਧਦਫਧਠਡਢਨਨਠਗਪਦਠਢਝਞਨਡਠਢਧਡਧਧਧਜੈਕਖੈਔਗਦੋਔਕੋਕੈਐਔਏਔਐਔਪਜਖਦਖਜਦਗਕਘਦਖਣੈਐਠਜਖਸਦਗਖੈਠੈਠਘਜਦੲਗਜਜਡੈਕਭੈਕਭੈਟਜਟਥਖਞਗਞਥਖਦਗਟਲਗਟਡਲਪਲਡਲਪਭਦਘਜਖਡਟਥਗਥਟਕਗਥਗਞਥਗਞਦਗਟਦਗਦਟਟਘਜਕਘਜਘਜਕਕਘਜਕਘਦਕਘਦਕਘਜਘਜਖਕਘਜਕਘਜਘਜਖਕਘਜਟਢਢਪਲਢਠਠਢਠਗਠ