Answer:
Do you have options or a context
Explanation:
Minimum probability is 0.05, so we have to choose n such that expected frequency corresponding to 0.05 probability should be at least 5.
Let n = 5
Expected frequency = n*p = 5 * 0.05 = 0.25 < 5
Let n = 25
Expected frequency = n*p = 25 * 0.05 = 1.25 < 5
Let n = 50
then
Expected frequency = n*p = 50* 0.05 = 2.25 < 5
Let n = 100
then
Expected frequency = n*p = 100* 0.05 = 5 = 5
Thus, for n = 100, we get expected frequency = 5,
Thus, the minimum number of times the spinner should be spun to conduct this test is 100.
<h3>What is a probability?</h3>
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Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.
Learn more about probability here,
brainly.com/question/743546
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Question asked:You guys should be vegetarian.
Why?
Because it is the main cause of global warming and contributes to World Hunger.
Is this a true statement?
My answer is: yes
Answer:
Explanation:
The equation for this chemical reaction is:
Ba + Cl2 -> BaCl2
So 1 moles of Ba react with 2 mole of Cl2 to form 1 mole of BaCl2.
Given 114g of Ba and 186g of Cl2 and molar mass of 137g for Ba and 71g for Cl2,
there are 114/137 = 0.83 mole of Ba and 186/71 = 2.62 mole of Cl2.
Ba is the limiting reactant as it will be used up.
Cl2 is the reactant in excess and there will be 2.62 - 0.83*2 = 0.96 mole or 0.96*71 = 68.16g left.
Moles of BaCl2 formed = moles of Ba = 0.83
As mass of 1 mole of BaCl2 is 208.23g, 0.83 mole or 0.83 * 208.23 = 172.83g of BaCl2 can be made.
