การสุ่มตัวอย่างซ้ำ ค่าประมาณจุด และการอนุมาน

# Write a for loop which repeats the sampling ten times
for i in ____:
    # Select a random starting row number
    initial_row_number = ____(____(btc_sp_df.shape[0] - 90))
    # Select the next 90 rows after the starting row
    sample_df = ____[____:____ + ____]
    # Compute the percent change in closing price of BTC and print it
    btc_pct_change = (____.iloc[0][____] - ____.iloc[-1][____]) / ____.iloc[0][____]
    print(btc_pct_change)