Screen Link:

https://app.dataquest.io/m/377/estimating-probabilities/3/probability-as-relative-frequency

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What I expected to happen:

Where I double-check online I see the Formula is

p_heads_1 = number of times event E happened / number of times we repeated the experiment

should be

p_heads_1 = 162 / 300 = 0.54

What actually happened:

In this exercise, We tossed a coin 300 times and got tails 162 times.

I’m trying to understand why the response is:

p_heads_1 = (300-162) / 300

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Thanks